./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/LeUserDefRec.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_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/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_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/LeUserDefRec.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/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_6d514e23-3db8-4438-be37-5f0375ceba74/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 f7a7969fc6cc20e98c11cb81158885b6cad7da26c6b558e299f4dcaf9719967a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:31:25,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:31:25,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:31:25,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:31:25,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:31:25,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:31:25,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:31:25,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:31:25,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:31:25,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:31:25,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:31:25,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:31:25,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:31:25,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:31:25,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:31:25,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:31:25,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:31:25,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:31:25,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:31:25,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:31:25,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:31:25,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:31:25,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:31:25,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:31:25,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:31:25,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:31:25,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:31:25,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:31:25,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:31:25,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:31:25,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:31:25,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:31:25,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:31:25,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:31:25,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:31:25,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:31:25,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:31:25,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:31:25,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:31:25,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:31:25,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:31:25,440 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-20 07:31:25,477 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:31:25,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:31:25,478 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:31:25,478 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:31:25,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:31:25,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:31:25,479 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:31:25,480 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 07:31:25,480 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 07:31:25,480 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 07:31:25,480 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 07:31:25,481 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 07:31:25,481 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 07:31:25,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:31:25,481 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:31:25,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:31:25,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:31:25,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 07:31:25,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 07:31:25,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 07:31:25,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:31:25,483 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 07:31:25,483 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:31:25,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 07:31:25,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:31:25,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:31:25,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:31:25,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:31:25,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:31:25,485 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 07:31:25,486 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_6d514e23-3db8-4438-be37-5f0375ceba74/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7a7969fc6cc20e98c11cb81158885b6cad7da26c6b558e299f4dcaf9719967a [2021-11-20 07:31:25,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:31:25,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:31:25,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:31:25,769 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:31:25,769 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:31:25,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-numeric/LeUserDefRec.c [2021-11-20 07:31:25,855 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/data/8dc6f1ca0/f21b5d408cd7459f9cfb6054c318d91c/FLAG6d1b8f92b [2021-11-20 07:31:26,260 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:31:26,260 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/sv-benchmarks/c/termination-numeric/LeUserDefRec.c [2021-11-20 07:31:26,267 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/data/8dc6f1ca0/f21b5d408cd7459f9cfb6054c318d91c/FLAG6d1b8f92b [2021-11-20 07:31:26,654 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/data/8dc6f1ca0/f21b5d408cd7459f9cfb6054c318d91c [2021-11-20 07:31:26,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:31:26,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:31:26,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:31:26,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:31:26,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:31:26,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:31:26" (1/1) ... [2021-11-20 07:31:26,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cc902f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:26, skipping insertion in model container [2021-11-20 07:31:26,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:31:26" (1/1) ... [2021-11-20 07:31:26,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:31:26,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:31:26,857 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:31:26,866 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:31:26,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:31:26,899 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:31:26,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:26 WrapperNode [2021-11-20 07:31:26,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:31:26,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:31:26,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:31:26,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:31:26,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:26" (1/1) ... [2021-11-20 07:31:26,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:26" (1/1) ... [2021-11-20 07:31:26,927 INFO L137 Inliner]: procedures = 6, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2021-11-20 07:31:26,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:31:26,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:31:26,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:31:26,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:31:26,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:26" (1/1) ... [2021-11-20 07:31:26,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:26" (1/1) ... [2021-11-20 07:31:26,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:26" (1/1) ... [2021-11-20 07:31:26,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:26" (1/1) ... [2021-11-20 07:31:26,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:26" (1/1) ... [2021-11-20 07:31:26,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:26" (1/1) ... [2021-11-20 07:31:26,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:26" (1/1) ... [2021-11-20 07:31:26,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:31:26,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:31:26,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:31:26,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:31:26,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:26" (1/1) ... [2021-11-20 07:31:26,966 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:31:26,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:31:26,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:31:27,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 07:31:27,044 INFO L130 BoogieDeclarations]: Found specification of procedure le [2021-11-20 07:31:27,044 INFO L138 BoogieDeclarations]: Found implementation of procedure le [2021-11-20 07:31:27,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:31:27,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:31:27,089 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:31:27,090 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:31:27,176 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:31:27,183 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:31:27,184 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:31:27,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:31:27 BoogieIcfgContainer [2021-11-20 07:31:27,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:31:27,187 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 07:31:27,187 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 07:31:27,190 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 07:31:27,191 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:31:27,191 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:31:26" (1/3) ... [2021-11-20 07:31:27,192 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25be11c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:31:27, skipping insertion in model container [2021-11-20 07:31:27,193 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:31:27,193 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:31:26" (2/3) ... [2021-11-20 07:31:27,193 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25be11c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:31:27, skipping insertion in model container [2021-11-20 07:31:27,193 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:31:27,193 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:31:27" (3/3) ... [2021-11-20 07:31:27,195 INFO L388 chiAutomizerObserver]: Analyzing ICFG LeUserDefRec.c [2021-11-20 07:31:27,245 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 07:31:27,245 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 07:31:27,245 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 07:31:27,245 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 07:31:27,245 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 07:31:27,246 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 07:31:27,246 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 07:31:27,246 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 07:31:27,259 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:31:27,281 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 07:31:27,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:31:27,281 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:31:27,288 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-20 07:31:27,288 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 07:31:27,288 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 07:31:27,288 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:31:27,290 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 07:31:27,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:31:27,291 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:31:27,291 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-20 07:31:27,291 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 07:31:27,298 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~ret3#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 15#L23true assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 9#L26true assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 7#L29true call main_#t~ret3#1 := le(main_~x~0#1, main_~y~0#1);< 4#leENTRYtrue [2021-11-20 07:31:27,298 INFO L793 eck$LassoCheckResult]: Loop: 4#leENTRYtrue ~x := #in~x;~y := #in~y; 10#L42true assume ~x > 0 && ~y > 0; 12#L43true call #t~ret5 := le(~x - 1, ~y - 1);< 4#leENTRYtrue [2021-11-20 07:31:27,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:31:27,305 INFO L85 PathProgramCache]: Analyzing trace with hash 36330292, now seen corresponding path program 1 times [2021-11-20 07:31:27,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:31:27,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447581490] [2021-11-20 07:31:27,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:27,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:31:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:31:27,386 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:31:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:31:27,407 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:31:27,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:31:27,410 INFO L85 PathProgramCache]: Analyzing trace with hash 29910, now seen corresponding path program 1 times [2021-11-20 07:31:27,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:31:27,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256367757] [2021-11-20 07:31:27,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:27,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:31:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:31:27,419 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:31:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:31:27,427 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:31:27,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:31:27,429 INFO L85 PathProgramCache]: Analyzing trace with hash -16029501, now seen corresponding path program 1 times [2021-11-20 07:31:27,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:31:27,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86261592] [2021-11-20 07:31:27,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:27,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:31:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:31:27,445 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:31:27,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:31:27,458 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:31:27,647 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:31:27,648 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:31:27,648 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:31:27,648 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:31:27,648 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:31:27,648 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:31:27,648 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:31:27,649 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:31:27,649 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeUserDefRec.c_Iteration1_Loop [2021-11-20 07:31:27,649 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:31:27,649 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:31:27,668 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 07:31:27,677 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 07:31:27,694 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 07:31:27,709 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 07:31:27,712 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 07:31:27,721 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 07:31:27,790 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:31:27,791 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:31:27,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:31:27,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:31:27,800 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:31:27,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 07:31:27,804 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:31:27,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:31:27,824 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 07:31:27,824 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {le_~y=0} Honda state: {le_~y=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 07:31:27,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:31:27,847 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:31:27,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:31:27,849 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:31:27,856 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:31:27,856 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:31:27,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 07:31:27,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:31:27,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:31:27,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:31:27,909 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:31:27,919 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:31:27,920 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:31:27,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 07:31:28,043 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:31:28,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:31:28,049 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:31:28,050 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:31:28,050 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:31:28,050 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:31:28,050 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:31:28,050 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:31:28,050 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:31:28,050 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:31:28,050 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeUserDefRec.c_Iteration1_Loop [2021-11-20 07:31:28,051 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:31:28,051 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:31:28,052 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 07:31:28,065 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 07:31:28,073 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 07:31:28,075 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 07:31:28,094 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 07:31:28,097 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 07:31:28,172 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:31:28,177 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:31:28,180 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:31:28,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:31:28,183 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:31:28,187 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 07:31:28,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:31:28,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:31:28,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:31:28,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:31:28,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:31:28,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:31:28,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:31:28,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 07:31:28,205 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:31:28,233 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:31:28,233 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-20 07:31:28,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:31:28,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:31:28,240 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:31:28,255 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:31:28,255 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:31:28,256 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:31:28,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 07:31:28,257 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(le_#in~y) = 1*le_#in~y Supporting invariants [] [2021-11-20 07:31:28,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:31:28,297 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:31:28,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:31:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:28,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:31:28,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:31:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:28,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 07:31:28,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:31:28,463 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 07:31:28,505 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:31:28,507 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:31:28,602 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 33 states and 38 transitions. Complement of second has 12 states. [2021-11-20 07:31:28,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-20 07:31:28,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:31:28,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-11-20 07:31:28,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 3 letters. [2021-11-20 07:31:28,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:31:28,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 3 letters. [2021-11-20 07:31:28,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:31:28,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 6 letters. [2021-11-20 07:31:28,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:31:28,618 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 38 transitions. [2021-11-20 07:31:28,626 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 07:31:28,628 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2021-11-20 07:31:28,629 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-20 07:31:28,630 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-20 07:31:28,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-20 07:31:28,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:31:28,631 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:31:28,631 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:31:28,631 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:31:28,631 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 07:31:28,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-20 07:31:28,632 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 07:31:28,632 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-20 07:31:28,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 07:31:28 BoogieIcfgContainer [2021-11-20 07:31:28,641 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 07:31:28,646 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:31:28,646 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:31:28,647 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:31:28,647 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:31:27" (3/4) ... [2021-11-20 07:31:28,654 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:31:28,654 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:31:28,656 INFO L158 Benchmark]: Toolchain (without parser) took 1996.34ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 60.8MB in the beginning and 83.7MB in the end (delta: -22.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:31:28,657 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 100.7MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:31:28,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.13ms. Allocated memory is still 100.7MB. Free memory was 60.6MB in the beginning and 76.9MB in the end (delta: -16.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:31:28,659 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.63ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 75.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:31:28,660 INFO L158 Benchmark]: Boogie Preprocessor took 20.38ms. Allocated memory is still 100.7MB. Free memory was 75.6MB in the beginning and 74.8MB in the end (delta: 859.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:31:28,666 INFO L158 Benchmark]: RCFGBuilder took 235.35ms. Allocated memory is still 100.7MB. Free memory was 74.8MB in the beginning and 66.1MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:31:28,666 INFO L158 Benchmark]: BuchiAutomizer took 1454.51ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 66.1MB in the beginning and 84.1MB in the end (delta: -18.1MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2021-11-20 07:31:28,668 INFO L158 Benchmark]: Witness Printer took 8.10ms. Allocated memory is still 121.6MB. Free memory was 84.1MB in the beginning and 83.7MB in the end (delta: 461.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:31:28,676 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 100.7MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.13ms. Allocated memory is still 100.7MB. Free memory was 60.6MB in the beginning and 76.9MB in the end (delta: -16.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.63ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 75.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.38ms. Allocated memory is still 100.7MB. Free memory was 75.6MB in the beginning and 74.8MB in the end (delta: 859.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 235.35ms. Allocated memory is still 100.7MB. Free memory was 74.8MB in the beginning and 66.1MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1454.51ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 66.1MB in the beginning and 84.1MB in the end (delta: -18.1MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Witness Printer took 8.10ms. Allocated memory is still 121.6MB. Free memory was 84.1MB in the beginning and 83.7MB in the end (delta: 461.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(y) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 11 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 76ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-20 07:31:28,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-11-20 07:31:28,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d514e23-3db8-4438-be37-5f0375ceba74/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE