./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-04.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_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/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_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/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_18e71e36-ec27-4a11-9709-4fd7cdd735f9/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 d9b86d1f29f2731007b3a8d26bb8c0cb116b06fbc541c6c3b999ae3d401be06a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:31:43,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:31:43,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:31:43,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:31:43,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:31:43,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:31:43,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:31:43,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:31:43,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:31:43,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:31:43,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:31:43,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:31:43,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:31:43,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:31:43,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:31:43,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:31:43,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:31:43,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:31:43,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:31:43,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:31:43,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:31:43,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:31:43,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:31:43,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:31:43,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:31:43,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:31:44,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:31:44,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:31:44,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:31:44,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:31:44,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:31:44,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:31:44,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:31:44,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:31:44,012 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:31:44,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:31:44,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:31:44,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:31:44,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:31:44,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:31:44,015 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:31:44,016 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-20 05:31:44,062 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:31:44,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:31:44,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:31:44,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:31:44,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:31:44,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:31:44,067 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:31:44,067 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 05:31:44,067 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 05:31:44,068 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 05:31:44,068 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 05:31:44,068 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 05:31:44,068 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 05:31:44,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:31:44,069 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 05:31:44,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:31:44,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:31:44,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 05:31:44,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 05:31:44,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 05:31:44,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:31:44,070 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 05:31:44,070 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:31:44,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 05:31:44,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:31:44,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:31:44,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:31:44,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:31:44,072 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:31:44,073 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 05:31:44,073 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_18e71e36-ec27-4a11-9709-4fd7cdd735f9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9b86d1f29f2731007b3a8d26bb8c0cb116b06fbc541c6c3b999ae3d401be06a [2021-11-20 05:31:44,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:31:44,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:31:44,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:31:44,397 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:31:44,399 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:31:44,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-bwb/and-04.c [2021-11-20 05:31:44,491 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/data/24605656e/c8c5ba2072684b6092d757b54fd4b2cb/FLAG5e085849d [2021-11-20 05:31:44,990 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:31:44,990 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/sv-benchmarks/c/termination-bwb/and-04.c [2021-11-20 05:31:44,996 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/data/24605656e/c8c5ba2072684b6092d757b54fd4b2cb/FLAG5e085849d [2021-11-20 05:31:45,362 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/data/24605656e/c8c5ba2072684b6092d757b54fd4b2cb [2021-11-20 05:31:45,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:31:45,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:31:45,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:31:45,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:31:45,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:31:45,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:31:45" (1/1) ... [2021-11-20 05:31:45,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16530341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:45, skipping insertion in model container [2021-11-20 05:31:45,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:31:45" (1/1) ... [2021-11-20 05:31:45,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:31:45,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:31:45,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:31:45,613 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:31:45,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:31:45,641 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:31:45,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:45 WrapperNode [2021-11-20 05:31:45,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:31:45,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:31:45,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:31:45,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:31:45,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:45" (1/1) ... [2021-11-20 05:31:45,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:45" (1/1) ... [2021-11-20 05:31:45,676 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 14 [2021-11-20 05:31:45,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:31:45,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:31:45,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:31:45,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:31:45,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:45" (1/1) ... [2021-11-20 05:31:45,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:45" (1/1) ... [2021-11-20 05:31:45,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:45" (1/1) ... [2021-11-20 05:31:45,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:45" (1/1) ... [2021-11-20 05:31:45,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:45" (1/1) ... [2021-11-20 05:31:45,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:45" (1/1) ... [2021-11-20 05:31:45,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:45" (1/1) ... [2021-11-20 05:31:45,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:31:45,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:31:45,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:31:45,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:31:45,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:45" (1/1) ... [2021-11-20 05:31:45,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:31:45,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:31:45,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:31:45,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 05:31:45,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:31:45,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:31:45,850 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:31:45,853 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:31:45,944 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:31:45,953 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:31:45,954 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 05:31:45,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:31:45 BoogieIcfgContainer [2021-11-20 05:31:45,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:31:45,960 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 05:31:45,960 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 05:31:45,965 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 05:31:45,966 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:31:45,967 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 05:31:45" (1/3) ... [2021-11-20 05:31:45,968 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9972768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:31:45, skipping insertion in model container [2021-11-20 05:31:45,969 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:31:45,969 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:45" (2/3) ... [2021-11-20 05:31:45,970 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9972768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:31:45, skipping insertion in model container [2021-11-20 05:31:45,970 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:31:45,970 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:31:45" (3/3) ... [2021-11-20 05:31:45,972 INFO L388 chiAutomizerObserver]: Analyzing ICFG and-04.c [2021-11-20 05:31:46,044 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 05:31:46,044 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 05:31:46,044 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 05:31:46,044 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 05:31:46,045 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 05:31:46,045 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 05:31:46,045 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 05:31:46,045 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 05:31:46,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 05:31:46,076 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 05:31:46,076 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:31:46,077 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:31:46,081 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 05:31:46,082 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 05:31:46,082 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 05:31:46,082 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 05:31:46,083 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 05:31:46,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:31:46,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:31:46,083 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 05:31:46,084 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 05:31:46,089 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 6#L16-2true [2021-11-20 05:31:46,090 INFO L793 eck$LassoCheckResult]: Loop: 6#L16-2true assume !!(main_~x~0#1 > 5); 3#L16true assume !(10 != main_~x~0#1);main_~x~0#1 := main_~x~0#1 - 1; 6#L16-2true [2021-11-20 05:31:46,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:46,096 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-20 05:31:46,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:31:46,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299524936] [2021-11-20 05:31:46,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:31:46,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:31:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:46,173 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:31:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:46,191 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:31:46,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:46,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2021-11-20 05:31:46,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:31:46,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387075801] [2021-11-20 05:31:46,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:31:46,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:31:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:46,211 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:31:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:46,217 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:31:46,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:46,219 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2021-11-20 05:31:46,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:31:46,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873857789] [2021-11-20 05:31:46,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:31:46,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:31:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:46,227 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:31:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:46,233 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:31:46,300 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:31:46,301 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:31:46,301 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:31:46,301 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:31:46,302 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 05:31:46,302 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:31:46,302 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:31:46,302 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:31:46,302 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-04.c_Iteration1_Loop [2021-11-20 05:31:46,302 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:31:46,303 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:31:46,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:31:46,388 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:31:46,389 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 05:31:46,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:31:46,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:31:46,393 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:31:46,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 05:31:46,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:31:46,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 05:31:46,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 05:31:46,475 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:31:46,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:31:46,480 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:31:46,486 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 05:31:46,486 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:31:46,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 05:31:46,536 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 05:31:46,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 05:31:46,570 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:31:46,570 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:31:46,570 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:31:46,570 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:31:46,570 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 05:31:46,570 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:31:46,571 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:31:46,571 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:31:46,571 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-04.c_Iteration1_Loop [2021-11-20 05:31:46,571 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:31:46,571 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:31:46,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:31:46,636 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:31:46,640 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 05:31:46,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:31:46,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:31:46,651 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:31:46,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 05:31:46,654 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 [2021-11-20 05:31:46,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:31:46,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:31:46,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:31:46,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:31:46,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:31:46,668 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:31:46,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:31:46,687 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 05:31:46,693 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-20 05:31:46,693 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 05:31:46,694 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:31:46,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:31:46,696 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:31:46,698 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 05:31:46,698 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 05:31:46,698 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 05:31:46,699 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2021-11-20 05:31:46,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 05:31:46,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 05:31:46,726 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 05:31:46,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:31:46,753 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:31:46,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:31:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:31:46,768 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:31:46,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:31:46,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:31:46,808 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-20 05:31:46,810 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2021-11-20 05:31:46,856 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 31 transitions. Complement of second has 6 states. [2021-11-20 05:31:46,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 05:31:46,864 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) [2021-11-20 05:31:46,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-11-20 05:31:46,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-20 05:31:46,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:31:46,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-20 05:31:46,869 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:31:46,870 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2021-11-20 05:31:46,870 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:31:46,871 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-11-20 05:31:46,877 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 05:31:46,881 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2021-11-20 05:31:46,882 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-11-20 05:31:46,883 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-11-20 05:31:46,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-11-20 05:31:46,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:31:46,884 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-20 05:31:46,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-11-20 05:31:46,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-20 05:31:46,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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 05:31:46,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2021-11-20 05:31:46,907 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-20 05:31:46,907 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-20 05:31:46,908 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 05:31:46,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2021-11-20 05:31:46,908 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 05:31:46,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:31:46,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:31:46,909 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-20 05:31:46,909 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 05:31:46,910 INFO L791 eck$LassoCheckResult]: Stem: 72#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 73#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 75#L16-2 assume !!(main_~x~0#1 > 5); 68#L16 assume 10 != main_~x~0#1;main_~x~0#1 := ~bitwiseAnd(main_~x~0#1, main_~x~0#1 - 1); 69#L16-2 [2021-11-20 05:31:46,910 INFO L793 eck$LassoCheckResult]: Loop: 69#L16-2 assume !!(main_~x~0#1 > 5); 74#L16 assume !(10 != main_~x~0#1);main_~x~0#1 := main_~x~0#1 - 1; 69#L16-2 [2021-11-20 05:31:46,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:46,910 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2021-11-20 05:31:46,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:31:46,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265012036] [2021-11-20 05:31:46,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:31:46,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:31:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:46,916 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:31:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:46,919 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:31:46,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:46,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2021-11-20 05:31:46,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:31:46,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480796357] [2021-11-20 05:31:46,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:31:46,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:31:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:46,925 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:31:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:46,929 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:31:46,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:46,930 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2021-11-20 05:31:46,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:31:46,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858577915] [2021-11-20 05:31:46,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:31:46,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:31:46,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:46,936 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:31:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:46,941 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:31:46,961 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:31:46,961 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:31:46,961 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:31:46,961 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:31:46,962 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 05:31:46,962 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:31:46,962 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:31:46,962 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:31:46,962 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-04.c_Iteration2_Loop [2021-11-20 05:31:46,962 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:31:46,963 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:31:46,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:31:46,986 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:31:46,986 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 05:31:46,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:31:46,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:31:46,988 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:31:46,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 05:31:46,992 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 05:31:46,993 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:31:47,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-11-20 05:31:47,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:31:47,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:31:47,037 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:31:47,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 05:31:47,084 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 05:31:47,084 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:31:47,131 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 05:31:47,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 05:31:47,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-20 05:31:47,184 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:31:47,184 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:31:47,184 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:31:47,184 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:31:47,184 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 05:31:47,184 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:31:47,184 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:31:47,185 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:31:47,185 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-04.c_Iteration2_Loop [2021-11-20 05:31:47,185 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:31:47,185 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:31:47,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:31:47,210 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:31:47,211 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 05:31:47,211 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:31:47,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:31:47,212 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:31:47,223 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 [2021-11-20 05:31:47,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-20 05:31:47,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:31:47,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:31:47,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:31:47,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:31:47,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:31:47,234 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:31:47,234 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:31:47,248 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 05:31:47,252 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 05:31:47,252 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-20 05:31:47,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:31:47,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:31:47,256 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:31:47,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-20 05:31:47,258 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 05:31:47,258 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 05:31:47,258 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 05:31:47,258 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2021-11-20 05:31:47,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-20 05:31:47,285 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 05:31:47,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:31:47,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:31:47,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:31:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:31:47,318 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:31:47,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:31:47,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:31:47,326 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-20 05:31:47,326 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 05:31:47,336 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 12 states and 17 transitions. Complement of second has 5 states. [2021-11-20 05:31:47,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 05:31:47,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 05:31:47,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-11-20 05:31:47,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-20 05:31:47,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:31:47,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2021-11-20 05:31:47,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:31:47,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2021-11-20 05:31:47,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:31:47,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2021-11-20 05:31:47,340 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 05:31:47,341 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2021-11-20 05:31:47,341 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-11-20 05:31:47,342 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-11-20 05:31:47,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2021-11-20 05:31:47,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:31:47,342 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-11-20 05:31:47,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2021-11-20 05:31:47,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-20 05:31:47,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 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 05:31:47,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2021-11-20 05:31:47,344 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-11-20 05:31:47,345 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-11-20 05:31:47,345 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-20 05:31:47,345 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2021-11-20 05:31:47,346 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 05:31:47,346 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:31:47,346 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:31:47,346 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2021-11-20 05:31:47,346 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 05:31:47,347 INFO L791 eck$LassoCheckResult]: Stem: 130#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 131#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 134#L16-2 assume !!(main_~x~0#1 > 5); 126#L16 assume 10 != main_~x~0#1;main_~x~0#1 := ~bitwiseAnd(main_~x~0#1, main_~x~0#1 - 1); 127#L16-2 assume !!(main_~x~0#1 > 5); 135#L16 assume 10 != main_~x~0#1;main_~x~0#1 := ~bitwiseAnd(main_~x~0#1, main_~x~0#1 - 1); 132#L16-2 [2021-11-20 05:31:47,347 INFO L793 eck$LassoCheckResult]: Loop: 132#L16-2 assume !!(main_~x~0#1 > 5); 133#L16 assume !(10 != main_~x~0#1);main_~x~0#1 := main_~x~0#1 - 1; 132#L16-2 [2021-11-20 05:31:47,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:47,348 INFO L85 PathProgramCache]: Analyzing trace with hash 889692233, now seen corresponding path program 2 times [2021-11-20 05:31:47,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:31:47,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971230485] [2021-11-20 05:31:47,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:31:47,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:31:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:47,353 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:31:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:47,357 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:31:47,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:47,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2021-11-20 05:31:47,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:31:47,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407752622] [2021-11-20 05:31:47,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:31:47,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:31:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:47,362 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:31:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:47,366 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:31:47,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:47,367 INFO L85 PathProgramCache]: Analyzing trace with hash 295744366, now seen corresponding path program 2 times [2021-11-20 05:31:47,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:31:47,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390839447] [2021-11-20 05:31:47,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:31:47,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:31:47,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:47,372 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:31:47,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:47,377 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:31:47,396 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:31:47,396 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:31:47,396 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:31:47,396 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:31:47,397 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 05:31:47,397 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:31:47,397 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:31:47,397 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:31:47,397 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-04.c_Iteration3_Loop [2021-11-20 05:31:47,397 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:31:47,398 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:31:47,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:31:47,420 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:31:47,420 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 05:31:47,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:31:47,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:31:47,424 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:31:47,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 05:31:47,432 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:31:47,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-20 05:31:47,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-20 05:31:47,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:31:47,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:31:47,501 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:31:47,507 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 05:31:47,508 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:31:47,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-20 05:31:47,534 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 05:31:47,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-20 05:31:47,571 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:31:47,571 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:31:47,572 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:31:47,572 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:31:47,572 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 05:31:47,572 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:31:47,572 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:31:47,572 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:31:47,572 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-04.c_Iteration3_Loop [2021-11-20 05:31:47,572 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:31:47,572 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:31:47,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:31:47,596 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:31:47,596 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 05:31:47,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:31:47,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:31:47,600 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:31:47,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-20 05:31:47,605 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 [2021-11-20 05:31:47,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:31:47,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:31:47,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:31:47,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:31:47,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:31:47,617 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:31:47,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:31:47,629 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 05:31:47,632 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 05:31:47,632 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-20 05:31:47,632 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:31:47,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:31:47,640 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:31:47,646 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 05:31:47,646 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 05:31:47,646 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 05:31:47,646 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2021-11-20 05:31:47,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-20 05:31:47,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-20 05:31:47,681 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 05:31:47,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:31:47,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:31:47,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:31:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:31:47,720 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:31:47,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:31:47,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:31:47,729 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-20 05:31:47,729 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 05:31:47,740 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) Result 14 states and 21 transitions. Complement of second has 5 states. [2021-11-20 05:31:47,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 05:31:47,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 05:31:47,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-11-20 05:31:47,742 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2021-11-20 05:31:47,743 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:31:47,743 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 05:31:47,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:31:47,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:31:47,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:31:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:31:47,779 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:31:47,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:31:47,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:31:47,788 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-20 05:31:47,788 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 05:31:47,798 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) Result 14 states and 21 transitions. Complement of second has 5 states. [2021-11-20 05:31:47,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 05:31:47,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 05:31:47,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-11-20 05:31:47,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2021-11-20 05:31:47,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:31:47,801 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 05:31:47,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:31:47,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:31:47,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:31:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:31:47,838 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:31:47,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:31:47,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:31:47,846 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-20 05:31:47,847 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 05:31:47,857 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) Result 16 states and 24 transitions. Complement of second has 4 states. [2021-11-20 05:31:47,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 05:31:47,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 05:31:47,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-11-20 05:31:47,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2021-11-20 05:31:47,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:31:47,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2021-11-20 05:31:47,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:31:47,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2021-11-20 05:31:47,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:31:47,861 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 24 transitions. [2021-11-20 05:31:47,863 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-20 05:31:47,863 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 20 transitions. [2021-11-20 05:31:47,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-20 05:31:47,864 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-11-20 05:31:47,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 20 transitions. [2021-11-20 05:31:47,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:31:47,864 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 20 transitions. [2021-11-20 05:31:47,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 20 transitions. [2021-11-20 05:31:47,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 6. [2021-11-20 05:31:47,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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 05:31:47,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2021-11-20 05:31:47,866 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-11-20 05:31:47,866 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-11-20 05:31:47,866 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-20 05:31:47,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2021-11-20 05:31:47,867 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-20 05:31:47,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:31:47,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:31:47,868 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 05:31:47,868 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 05:31:47,868 INFO L791 eck$LassoCheckResult]: Stem: 287#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 288#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 284#L16-2 [2021-11-20 05:31:47,868 INFO L793 eck$LassoCheckResult]: Loop: 284#L16-2 assume !!(main_~x~0#1 > 5); 283#L16 assume 10 != main_~x~0#1;main_~x~0#1 := ~bitwiseAnd(main_~x~0#1, main_~x~0#1 - 1); 284#L16-2 [2021-11-20 05:31:47,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:47,869 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-11-20 05:31:47,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:31:47,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051283905] [2021-11-20 05:31:47,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:31:47,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:31:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:47,873 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:31:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:47,875 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:31:47,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:47,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2021-11-20 05:31:47,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:31:47,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697683181] [2021-11-20 05:31:47,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:31:47,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:31:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:47,880 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:31:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:47,883 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:31:47,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:47,884 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 3 times [2021-11-20 05:31:47,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:31:47,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125861251] [2021-11-20 05:31:47,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:31:47,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:31:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:47,888 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:31:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:31:47,891 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:31:47,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 05:31:47 BoogieIcfgContainer [2021-11-20 05:31:47,917 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 05:31:47,917 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 05:31:47,917 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 05:31:47,918 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 05:31:47,918 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:31:45" (3/4) ... [2021-11-20 05:31:47,921 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 05:31:47,921 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 05:31:47,922 INFO L158 Benchmark]: Toolchain (without parser) took 2555.63ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 82.3MB in the beginning and 87.2MB in the end (delta: -5.0MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2021-11-20 05:31:47,923 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:31:47,924 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.55ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 82.1MB in the beginning and 122.9MB in the end (delta: -40.8MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2021-11-20 05:31:47,924 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.67ms. Allocated memory is still 146.8MB. Free memory was 122.9MB in the beginning and 121.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:31:47,925 INFO L158 Benchmark]: Boogie Preprocessor took 20.65ms. Allocated memory is still 146.8MB. Free memory was 121.7MB in the beginning and 120.8MB in the end (delta: 925.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:31:47,926 INFO L158 Benchmark]: RCFGBuilder took 259.50ms. Allocated memory is still 146.8MB. Free memory was 120.2MB in the beginning and 112.4MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 05:31:47,926 INFO L158 Benchmark]: BuchiAutomizer took 1956.75ms. Allocated memory is still 146.8MB. Free memory was 112.4MB in the beginning and 88.1MB in the end (delta: 24.3MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2021-11-20 05:31:47,927 INFO L158 Benchmark]: Witness Printer took 4.19ms. Allocated memory is still 146.8MB. Free memory was 88.1MB in the beginning and 87.2MB in the end (delta: 902.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:31:47,930 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.55ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 82.1MB in the beginning and 122.9MB in the end (delta: -40.8MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.67ms. Allocated memory is still 146.8MB. Free memory was 122.9MB in the beginning and 121.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.65ms. Allocated memory is still 146.8MB. Free memory was 121.7MB in the beginning and 120.8MB in the end (delta: 925.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 259.50ms. Allocated memory is still 146.8MB. Free memory was 120.2MB in the beginning and 112.4MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1956.75ms. Allocated memory is still 146.8MB. Free memory was 112.4MB in the beginning and 88.1MB in the end (delta: 24.3MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * Witness Printer took 4.19ms. Allocated memory is still 146.8MB. Free memory was 88.1MB in the beginning and 87.2MB in the end (delta: 902.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic) and one module whose termination is unknown.One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. The remainder module has 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 25 mSDtfsCounter, 30 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq200 hnf90 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 57ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer cannot decide termination for the following lasso because it contains the following overapproximations. Overapproximations C: x&(x-1) [17] (Reason bitwiseAnd) 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_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" Loop: "assume !!(main_~x~0#1 > 5);" "assume 10 != main_~x~0#1;main_~x~0#1 := ~bitwiseAnd(main_~x~0#1, main_~x~0#1 - 1);" RESULT: Ultimate could not prove your program: unable to determine termination [2021-11-20 05:31:47,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-20 05:31:48,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-20 05:31:48,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18e71e36-ec27-4a11-9709-4fd7cdd735f9/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_18e71e36-ec27-4a11-9709-4fd7cdd735f9/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