./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/not-02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213257f5-b281-424c-9f12-c36e3c440bc6/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213257f5-b281-424c-9f12-c36e3c440bc6/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213257f5-b281-424c-9f12-c36e3c440bc6/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213257f5-b281-424c-9f12-c36e3c440bc6/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/not-02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213257f5-b281-424c-9f12-c36e3c440bc6/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213257f5-b281-424c-9f12-c36e3c440bc6/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 199b797df2eb6ede2d60bb14045882149ff769545cf7a4f4b4d8046d9b5182e0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:25:11,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:25:11,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:25:11,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:25:11,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:25:11,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:25:11,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:25:11,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:25:11,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:25:11,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:25:11,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:25:11,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:25:11,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:25:11,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:25:11,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:25:11,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:25:11,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:25:11,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:25:11,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:25:11,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:25:11,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:25:11,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:25:11,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:25:11,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:25:11,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:25:11,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:25:11,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:25:11,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:25:11,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:25:11,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:25:11,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:25:11,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:25:11,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:25:11,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:25:11,773 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:25:11,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:25:11,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:25:11,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:25:11,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:25:11,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:25:11,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:25:11,777 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213257f5-b281-424c-9f12-c36e3c440bc6/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-20 07:25:11,832 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:25:11,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:25:11,834 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:25:11,834 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:25:11,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:25:11,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:25:11,836 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:25:11,837 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 07:25:11,837 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 07:25:11,837 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 07:25:11,838 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 07:25:11,839 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 07:25:11,839 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 07:25:11,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:25:11,839 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:25:11,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:25:11,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:25:11,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 07:25:11,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 07:25:11,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 07:25:11,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:25:11,841 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 07:25:11,841 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:25:11,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 07:25:11,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:25:11,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:25:11,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:25:11,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:25:11,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:25:11,845 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 07:25:11,845 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213257f5-b281-424c-9f12-c36e3c440bc6/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213257f5-b281-424c-9f12-c36e3c440bc6/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 199b797df2eb6ede2d60bb14045882149ff769545cf7a4f4b4d8046d9b5182e0 [2021-11-20 07:25:12,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:25:12,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:25:12,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:25:12,109 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:25:12,110 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:25:12,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213257f5-b281-424c-9f12-c36e3c440bc6/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-bwb/not-02.c [2021-11-20 07:25:12,186 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213257f5-b281-424c-9f12-c36e3c440bc6/bin/uautomizer-DQz5hQGWxF/data/123a5e0ec/2e748a7dbea04c94aed20e00a83016c2/FLAG5ee257843 [2021-11-20 07:25:12,617 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:25:12,618 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213257f5-b281-424c-9f12-c36e3c440bc6/sv-benchmarks/c/termination-bwb/not-02.c [2021-11-20 07:25:12,625 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213257f5-b281-424c-9f12-c36e3c440bc6/bin/uautomizer-DQz5hQGWxF/data/123a5e0ec/2e748a7dbea04c94aed20e00a83016c2/FLAG5ee257843 [2021-11-20 07:25:13,014 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213257f5-b281-424c-9f12-c36e3c440bc6/bin/uautomizer-DQz5hQGWxF/data/123a5e0ec/2e748a7dbea04c94aed20e00a83016c2 [2021-11-20 07:25:13,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:25:13,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:25:13,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:25:13,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:25:13,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:25:13,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:25:13" (1/1) ... [2021-11-20 07:25:13,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@769417ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:13, skipping insertion in model container [2021-11-20 07:25:13,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:25:13" (1/1) ... [2021-11-20 07:25:13,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:25:13,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:25:13,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:25:13,206 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:25:13,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:25:13,227 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:25:13,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:13 WrapperNode [2021-11-20 07:25:13,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:25:13,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:25:13,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:25:13,229 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:25:13,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:13" (1/1) ... [2021-11-20 07:25:13,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:13" (1/1) ... [2021-11-20 07:25:13,254 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2021-11-20 07:25:13,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:25:13,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:25:13,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:25:13,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:25:13,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:13" (1/1) ... [2021-11-20 07:25:13,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:13" (1/1) ... [2021-11-20 07:25:13,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:13" (1/1) ... [2021-11-20 07:25:13,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:13" (1/1) ... [2021-11-20 07:25:13,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:13" (1/1) ... [2021-11-20 07:25:13,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:13" (1/1) ... [2021-11-20 07:25:13,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:13" (1/1) ... [2021-11-20 07:25:13,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:25:13,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:25:13,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:25:13,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:25:13,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:13" (1/1) ... [2021-11-20 07:25:13,283 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:25:13,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213257f5-b281-424c-9f12-c36e3c440bc6/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:25:13,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213257f5-b281-424c-9f12-c36e3c440bc6/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:25:13,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213257f5-b281-424c-9f12-c36e3c440bc6/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 07:25:13,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:25:13,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:25:13,401 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:25:13,403 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:25:13,456 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:25:13,461 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:25:13,462 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 07:25:13,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:25:13 BoogieIcfgContainer [2021-11-20 07:25:13,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:25:13,464 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 07:25:13,464 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 07:25:13,467 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 07:25:13,468 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:25:13,468 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:25:13" (1/3) ... [2021-11-20 07:25:13,470 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3445ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:25:13, skipping insertion in model container [2021-11-20 07:25:13,470 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:25:13,470 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:13" (2/3) ... [2021-11-20 07:25:13,471 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3445ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:25:13, skipping insertion in model container [2021-11-20 07:25:13,471 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:25:13,471 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:25:13" (3/3) ... [2021-11-20 07:25:13,472 INFO L388 chiAutomizerObserver]: Analyzing ICFG not-02.c [2021-11-20 07:25:13,515 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 07:25:13,516 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 07:25:13,516 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 07:25:13,516 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 07:25:13,516 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 07:25:13,516 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 07:25:13,516 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 07:25:13,516 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 07:25:13,530 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-11-20 07:25:13,548 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-20 07:25:13,549 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:25:13,549 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:25:13,555 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 07:25:13,555 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-20 07:25:13,555 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 07:25:13,555 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-11-20 07:25:13,556 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-20 07:25:13,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:25:13,556 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:25:13,557 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 07:25:13,557 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-20 07:25:13,563 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 1; 6#L18-2true [2021-11-20 07:25:13,564 INFO L793 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(0 != main_~x~0#1 && 0 != main_~y~0#1);main_~a~0#1 := main_~x~0#1;main_~x~0#1 := main_~y~0#1;main_~y~0#1 := ~bitwiseComplement(main_~a~0#1); 6#L18-2true [2021-11-20 07:25:13,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:25:13,570 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-20 07:25:13,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:25:13,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477212493] [2021-11-20 07:25:13,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:25:13,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:25:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:25:13,669 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:25:13,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:25:13,702 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:25:13,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:25:13,716 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2021-11-20 07:25:13,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:25:13,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746871318] [2021-11-20 07:25:13,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:25:13,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:25:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:25:13,736 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:25:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:25:13,749 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:25:13,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:25:13,753 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-20 07:25:13,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:25:13,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596954363] [2021-11-20 07:25:13,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:25:13,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:25:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:25:13,773 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:25:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:25:13,779 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:25:13,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 07:25:13 BoogieIcfgContainer [2021-11-20 07:25:13,958 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 07:25:13,959 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:25:13,959 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:25:13,959 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:25:13,960 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:25:13" (3/4) ... [2021-11-20 07:25:13,963 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:25:13,964 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:25:13,966 INFO L158 Benchmark]: Toolchain (without parser) took 945.90ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 66.7MB in the beginning and 69.1MB in the end (delta: -2.4MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2021-11-20 07:25:13,967 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 98.6MB. Free memory was 53.7MB in the beginning and 53.6MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:25:13,968 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.92ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 66.4MB in the beginning and 95.4MB in the end (delta: -29.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:25:13,969 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.82ms. Allocated memory is still 119.5MB. Free memory was 95.4MB in the beginning and 93.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:25:13,983 INFO L158 Benchmark]: Boogie Preprocessor took 17.83ms. Allocated memory is still 119.5MB. Free memory was 93.8MB in the beginning and 92.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:25:13,984 INFO L158 Benchmark]: RCFGBuilder took 189.38ms. Allocated memory is still 119.5MB. Free memory was 92.7MB in the beginning and 85.4MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 07:25:13,985 INFO L158 Benchmark]: BuchiAutomizer took 494.04ms. Allocated memory is still 119.5MB. Free memory was 85.4MB in the beginning and 69.7MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-20 07:25:13,986 INFO L158 Benchmark]: Witness Printer took 4.83ms. Allocated memory is still 119.5MB. Free memory was 69.7MB in the beginning and 69.1MB in the end (delta: 547.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:25:13,992 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 98.6MB. Free memory was 53.7MB in the beginning and 53.6MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.92ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 66.4MB in the beginning and 95.4MB in the end (delta: -29.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.82ms. Allocated memory is still 119.5MB. Free memory was 95.4MB in the beginning and 93.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.83ms. Allocated memory is still 119.5MB. Free memory was 93.8MB in the beginning and 92.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 189.38ms. Allocated memory is still 119.5MB. Free memory was 92.7MB in the beginning and 85.4MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 494.04ms. Allocated memory is still 119.5MB. Free memory was 85.4MB in the beginning and 69.7MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.83ms. Allocated memory is still 119.5MB. Free memory was 69.7MB in the beginning and 69.1MB in the end (delta: 547.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one module whose termination is unknown. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer cannot decide termination for the following lasso because it contains the following overapproximations. Overapproximations C: ~a [21] (Reason bitwiseComplement) Lasso Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 1;" Loop: "assume !!(0 != main_~x~0#1 && 0 != main_~y~0#1);main_~a~0#1 := main_~x~0#1;main_~x~0#1 := main_~y~0#1;main_~y~0#1 := ~bitwiseComplement(main_~a~0#1);" RESULT: Ultimate could not prove your program: unable to determine termination [2021-11-20 07:25:14,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213257f5-b281-424c-9f12-c36e3c440bc6/bin/uautomizer-DQz5hQGWxF/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 Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213257f5-b281-424c-9f12-c36e3c440bc6/bin/uautomizer-DQz5hQGWxF/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN