./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 b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/LeUserDefRec.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:31:43,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:31:43,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:31:43,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:31:43,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:31:43,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:31:43,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:31:43,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:31:43,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:31:43,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:31:43,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:31:43,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:31:43,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:31:43,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:31:43,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:31:43,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:31:43,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:31:43,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:31:43,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:31:43,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:31:43,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:31:43,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:31:43,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:31:43,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:31:43,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:31:43,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:31:43,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:31:43,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:31:43,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:31:43,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:31:43,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:31:43,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:31:43,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:31:43,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:31:43,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:31:43,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:31:43,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:31:43,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:31:43,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:31:43,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:31:43,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:31:43,966 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-21 16:31:44,007 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:31:44,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:31:44,008 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:31:44,008 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:31:44,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:31:44,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:31:44,010 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:31:44,010 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-21 16:31:44,010 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-21 16:31:44,010 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-21 16:31:44,011 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-21 16:31:44,011 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-21 16:31:44,012 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-21 16:31:44,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:31:44,012 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:31:44,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:31:44,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:31:44,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-21 16:31:44,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-21 16:31:44,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-21 16:31:44,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:31:44,013 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-21 16:31:44,013 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:31:44,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-21 16:31:44,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:31:44,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:31:44,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:31:44,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:31:44,016 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-21 16:31:44,016 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_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7a7969fc6cc20e98c11cb81158885b6cad7da26c6b558e299f4dcaf9719967a [2022-11-21 16:31:44,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:31:44,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:31:44,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:31:44,367 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:31:44,367 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:31:44,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/termination-numeric/LeUserDefRec.c [2022-11-21 16:31:47,378 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:31:47,584 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:31:47,585 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/sv-benchmarks/c/termination-numeric/LeUserDefRec.c [2022-11-21 16:31:47,592 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/data/557c569c0/3772619c54c64ef1808afe6358a3e7e3/FLAGc799f1aee [2022-11-21 16:31:47,613 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/data/557c569c0/3772619c54c64ef1808afe6358a3e7e3 [2022-11-21 16:31:47,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:31:47,618 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:31:47,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:31:47,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:31:47,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:31:47,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:31:47" (1/1) ... [2022-11-21 16:31:47,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fab849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:47, skipping insertion in model container [2022-11-21 16:31:47,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:31:47" (1/1) ... [2022-11-21 16:31:47,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:31:47,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:31:47,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:31:47,887 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:31:47,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:31:47,914 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:31:47,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:47 WrapperNode [2022-11-21 16:31:47,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:31:47,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:31:47,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:31:47,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:31:47,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:47" (1/1) ... [2022-11-21 16:31:47,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:47" (1/1) ... [2022-11-21 16:31:47,946 INFO L138 Inliner]: procedures = 6, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2022-11-21 16:31:47,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:31:47,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:31:47,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:31:47,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:31:47,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:47" (1/1) ... [2022-11-21 16:31:47,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:47" (1/1) ... [2022-11-21 16:31:47,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:47" (1/1) ... [2022-11-21 16:31:47,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:47" (1/1) ... [2022-11-21 16:31:47,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:47" (1/1) ... [2022-11-21 16:31:47,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:47" (1/1) ... [2022-11-21 16:31:47,965 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:47" (1/1) ... [2022-11-21 16:31:47,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:47" (1/1) ... [2022-11-21 16:31:47,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:31:47,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:31:47,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:31:47,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:31:47,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:47" (1/1) ... [2022-11-21 16:31:47,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:31:47,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:31:48,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:31:48,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-21 16:31:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure le [2022-11-21 16:31:48,055 INFO L138 BoogieDeclarations]: Found implementation of procedure le [2022-11-21 16:31:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:31:48,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:31:48,120 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:31:48,123 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:31:48,252 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:31:48,260 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:31:48,260 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:31:48,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:31:48 BoogieIcfgContainer [2022-11-21 16:31:48,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:31:48,264 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-21 16:31:48,264 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-21 16:31:48,270 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-21 16:31:48,271 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:31:48,271 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 04:31:47" (1/3) ... [2022-11-21 16:31:48,273 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4dbbbf11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 04:31:48, skipping insertion in model container [2022-11-21 16:31:48,273 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:31:48,273 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:47" (2/3) ... [2022-11-21 16:31:48,275 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4dbbbf11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 04:31:48, skipping insertion in model container [2022-11-21 16:31:48,276 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:31:48,276 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:31:48" (3/3) ... [2022-11-21 16:31:48,277 INFO L332 chiAutomizerObserver]: Analyzing ICFG LeUserDefRec.c [2022-11-21 16:31:48,360 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-21 16:31:48,360 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-21 16:31:48,360 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-21 16:31:48,361 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-21 16:31:48,361 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-21 16:31:48,361 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-21 16:31:48,361 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-21 16:31:48,361 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-21 16:31:48,366 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) [2022-11-21 16:31:48,391 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-21 16:31:48,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:31:48,392 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:31:48,398 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-21 16:31:48,399 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-21 16:31:48,399 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-21 16:31:48,399 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) [2022-11-21 16:31:48,402 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-21 16:31:48,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:31:48,402 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:31:48,403 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-21 16:31:48,403 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-21 16:31:48,415 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 10#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; 14#L23true assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 8#L26true assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 6#L29true call main_#t~ret3#1 := le(main_~x~0#1, main_~y~0#1);< 3#leENTRYtrue [2022-11-21 16:31:48,415 INFO L750 eck$LassoCheckResult]: Loop: 3#leENTRYtrue ~x := #in~x;~y := #in~y; 9#L42true assume ~x > 0 && ~y > 0; 11#L43true call #t~ret5 := le(~x - 1, ~y - 1);< 3#leENTRYtrue [2022-11-21 16:31:48,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:48,421 INFO L85 PathProgramCache]: Analyzing trace with hash 36330292, now seen corresponding path program 1 times [2022-11-21 16:31:48,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:48,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117733574] [2022-11-21 16:31:48,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:48,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:31:48,534 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:31:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:31:48,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:31:48,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:48,566 INFO L85 PathProgramCache]: Analyzing trace with hash 29910, now seen corresponding path program 1 times [2022-11-21 16:31:48,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:48,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361611169] [2022-11-21 16:31:48,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:48,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:31:48,577 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:31:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:31:48,584 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:31:48,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:48,586 INFO L85 PathProgramCache]: Analyzing trace with hash -16029501, now seen corresponding path program 1 times [2022-11-21 16:31:48,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:48,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233263591] [2022-11-21 16:31:48,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:48,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:31:48,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:31:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:31:48,612 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:31:48,829 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 16:31:48,830 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 16:31:48,830 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 16:31:48,831 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 16:31:48,831 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 16:31:48,831 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:31:48,831 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 16:31:48,832 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 16:31:48,832 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeUserDefRec.c_Iteration1_Loop [2022-11-21 16:31:48,832 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 16:31:48,832 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 16:31:48,849 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:31:48,866 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:31:48,874 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:31:48,878 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:31:48,882 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:31:48,885 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:31:48,952 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 16:31:48,953 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 16:31:48,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:31:48,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:31:48,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:31:48,974 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 16:31:48,974 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:31:48,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-21 16:31:48,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-21 16:31:48,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:31:48,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:31:48,997 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:31:49,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-21 16:31:49,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 16:31:49,012 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:31:49,081 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 16:31:49,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:31:49,086 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 16:31:49,086 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 16:31:49,086 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 16:31:49,086 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 16:31:49,086 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 16:31:49,086 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:31:49,087 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 16:31:49,087 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 16:31:49,087 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeUserDefRec.c_Iteration1_Loop [2022-11-21 16:31:49,087 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 16:31:49,087 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 16:31:49,089 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:31:49,106 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:31:49,119 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:31:49,123 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:31:49,127 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:31:49,132 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:31:49,203 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 16:31:49,207 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 16:31:49,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:31:49,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:31:49,230 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:31:49,237 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 16:31:49,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:31:49,251 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:31:49,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-21 16:31:49,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:31:49,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:31:49,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:31:49,255 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:31:49,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:31:49,265 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 16:31:49,274 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-21 16:31:49,275 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-21 16:31:49,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:31:49,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:31:49,313 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:31:49,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-21 16:31:49,315 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 16:31:49,316 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 16:31:49,316 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 16:31:49,317 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(le_#in~y) = 1*le_#in~y Supporting invariants [] [2022-11-21 16:31:49,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:31:49,329 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 16:31:49,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:49,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:31:49,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:31:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:49,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 16:31:49,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:31:49,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:49,497 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-21 16:31:49,499 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) [2022-11-21 16:31:49,608 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. [2022-11-21 16:31:49,610 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 [2022-11-21 16:31:49,616 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) [2022-11-21 16:31:49,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-11-21 16:31:49,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 3 letters. [2022-11-21 16:31:49,621 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:31:49,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 3 letters. [2022-11-21 16:31:49,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:31:49,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 6 letters. [2022-11-21 16:31:49,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:31:49,626 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 38 transitions. [2022-11-21 16:31:49,632 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-21 16:31:49,635 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2022-11-21 16:31:49,636 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-21 16:31:49,637 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-21 16:31:49,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-21 16:31:49,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:31:49,638 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 16:31:49,638 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 16:31:49,638 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 16:31:49,638 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-21 16:31:49,638 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-21 16:31:49,639 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-21 16:31:49,639 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-21 16:31:49,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 04:31:49 BoogieIcfgContainer [2022-11-21 16:31:49,654 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-21 16:31:49,656 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:31:49,656 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:31:49,657 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:31:49,658 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:31:48" (3/4) ... [2022-11-21 16:31:49,661 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:31:49,661 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:31:49,662 INFO L158 Benchmark]: Toolchain (without parser) took 2044.31ms. Allocated memory is still 188.7MB. Free memory was 149.6MB in the beginning and 90.6MB in the end (delta: 59.0MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. [2022-11-21 16:31:49,663 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:31:49,664 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.93ms. Allocated memory is still 188.7MB. Free memory was 149.6MB in the beginning and 153.5MB in the end (delta: -3.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:31:49,664 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.64ms. Allocated memory is still 188.7MB. Free memory was 153.5MB in the beginning and 152.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:31:49,667 INFO L158 Benchmark]: Boogie Preprocessor took 19.71ms. Allocated memory is still 188.7MB. Free memory was 152.3MB in the beginning and 151.4MB in the end (delta: 849.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:31:49,673 INFO L158 Benchmark]: RCFGBuilder took 293.78ms. Allocated memory is still 188.7MB. Free memory was 151.4MB in the beginning and 140.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:31:49,674 INFO L158 Benchmark]: BuchiAutomizer took 1390.34ms. Allocated memory is still 188.7MB. Free memory was 140.9MB in the beginning and 90.6MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-11-21 16:31:49,675 INFO L158 Benchmark]: Witness Printer took 5.52ms. Allocated memory is still 188.7MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:31:49,683 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.93ms. Allocated memory is still 188.7MB. Free memory was 149.6MB in the beginning and 153.5MB in the end (delta: -3.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.64ms. Allocated memory is still 188.7MB. Free memory was 153.5MB in the beginning and 152.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.71ms. Allocated memory is still 188.7MB. Free memory was 152.3MB in the beginning and 151.4MB in the end (delta: 849.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 293.78ms. Allocated memory is still 188.7MB. Free memory was 151.4MB in the beginning and 140.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1390.34ms. Allocated memory is still 188.7MB. Free memory was 140.9MB in the beginning and 90.6MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 5.52ms. Allocated memory is still 188.7MB. Free memory is still 90.6MB. 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 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 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: inital20 mio100 ax100 hnf100 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 108ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-21 16:31:49,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-21 16:31:49,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3494025f-ed24-476a-a70f-af6a2d263e43/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE