./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/not-03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 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_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/not-03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8 --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 285cff35709023846a1bd954129c82df7d866d184fde57b9e9aa336ce7a9f9b8 --- 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-2329fc7 [2022-12-13 11:33:51,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:33:51,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:33:51,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:33:51,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:33:51,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:33:51,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:33:51,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:33:51,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:33:51,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:33:51,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:33:51,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:33:51,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:33:51,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:33:51,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:33:51,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:33:51,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:33:51,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:33:51,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:33:51,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:33:51,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:33:51,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:33:51,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:33:51,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:33:51,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:33:51,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:33:51,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:33:51,556 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:33:51,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:33:51,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:33:51,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:33:51,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:33:51,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:33:51,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:33:51,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:33:51,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:33:51,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:33:51,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:33:51,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:33:51,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:33:51,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:33:51,561 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-12-13 11:33:51,576 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:33:51,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:33:51,576 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:33:51,577 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:33:51,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:33:51,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:33:51,577 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:33:51,578 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 11:33:51,578 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 11:33:51,578 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 11:33:51,578 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 11:33:51,578 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 11:33:51,578 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 11:33:51,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:33:51,578 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:33:51,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:33:51,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:33:51,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 11:33:51,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 11:33:51,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 11:33:51,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:33:51,579 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 11:33:51,579 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:33:51,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 11:33:51,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:33:51,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:33:51,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:33:51,580 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:33:51,580 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 11:33:51,580 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_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 285cff35709023846a1bd954129c82df7d866d184fde57b9e9aa336ce7a9f9b8 [2022-12-13 11:33:51,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:33:51,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:33:51,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:33:51,765 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:33:51,765 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:33:51,766 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-bwb/not-03.c [2022-12-13 11:33:54,199 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:33:54,377 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:33:54,378 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/sv-benchmarks/c/termination-bwb/not-03.c [2022-12-13 11:33:54,383 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/data/20a66e07a/ea4e0a83bb614706a86817c6a802c095/FLAGfae4a57d0 [2022-12-13 11:33:54,790 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/data/20a66e07a/ea4e0a83bb614706a86817c6a802c095 [2022-12-13 11:33:54,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:33:54,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:33:54,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:33:54,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:33:54,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:33:54,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:33:54" (1/1) ... [2022-12-13 11:33:54,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c4615a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:33:54, skipping insertion in model container [2022-12-13 11:33:54,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:33:54" (1/1) ... [2022-12-13 11:33:54,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:33:54,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:33:54,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:33:54,962 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:33:54,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:33:54,986 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:33:54,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:33:54 WrapperNode [2022-12-13 11:33:54,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:33:54,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:33:54,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:33:54,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:33:54,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:33:54" (1/1) ... [2022-12-13 11:33:55,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:33:54" (1/1) ... [2022-12-13 11:33:55,015 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-12-13 11:33:55,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:33:55,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:33:55,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:33:55,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:33:55,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:33:54" (1/1) ... [2022-12-13 11:33:55,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:33:54" (1/1) ... [2022-12-13 11:33:55,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:33:54" (1/1) ... [2022-12-13 11:33:55,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:33:54" (1/1) ... [2022-12-13 11:33:55,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:33:54" (1/1) ... [2022-12-13 11:33:55,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:33:54" (1/1) ... [2022-12-13 11:33:55,032 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:33:54" (1/1) ... [2022-12-13 11:33:55,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:33:54" (1/1) ... [2022-12-13 11:33:55,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:33:55,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:33:55,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:33:55,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:33:55,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:33:54" (1/1) ... [2022-12-13 11:33:55,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:33:55,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:33:55,063 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:33:55,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 11:33:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:33:55,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:33:55,150 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:33:55,152 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:33:55,204 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:33:55,209 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:33:55,209 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 11:33:55,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:33:55 BoogieIcfgContainer [2022-12-13 11:33:55,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:33:55,212 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 11:33:55,212 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 11:33:55,215 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 11:33:55,215 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 11:33:55,215 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 11:33:54" (1/3) ... [2022-12-13 11:33:55,216 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76a11b27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 11:33:55, skipping insertion in model container [2022-12-13 11:33:55,216 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 11:33:55,216 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:33:54" (2/3) ... [2022-12-13 11:33:55,216 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76a11b27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 11:33:55, skipping insertion in model container [2022-12-13 11:33:55,216 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 11:33:55,217 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:33:55" (3/3) ... [2022-12-13 11:33:55,218 INFO L332 chiAutomizerObserver]: Analyzing ICFG not-03.c [2022-12-13 11:33:55,261 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 11:33:55,261 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 11:33:55,261 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 11:33:55,261 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 11:33:55,261 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 11:33:55,261 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 11:33:55,261 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 11:33:55,261 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 11:33:55,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:33:55,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-12-13 11:33:55,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 11:33:55,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 11:33:55,281 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 11:33:55,281 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-12-13 11:33:55,281 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 11:33:55,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:33:55,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-12-13 11:33:55,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 11:33:55,282 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 11:33:55,282 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 11:33:55,282 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-12-13 11:33:55,287 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 6#L18-2true [2022-12-13 11:33:55,288 INFO L750 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 3#L18true assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1; 6#L18-2true [2022-12-13 11:33:55,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:33:55,292 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-12-13 11:33:55,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:33:55,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695633046] [2022-12-13 11:33:55,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:33:55,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:33:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:33:55,352 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:33:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:33:55,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:33:55,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:33:55,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-12-13 11:33:55,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:33:55,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556414900] [2022-12-13 11:33:55,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:33:55,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:33:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:33:55,380 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:33:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:33:55,384 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:33:55,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:33:55,386 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-12-13 11:33:55,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:33:55,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381386024] [2022-12-13 11:33:55,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:33:55,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:33:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:33:55,391 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:33:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:33:55,394 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:33:55,453 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 11:33:55,454 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 11:33:55,454 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 11:33:55,454 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 11:33:55,454 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 11:33:55,454 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:33:55,454 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 11:33:55,454 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 11:33:55,454 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-03.c_Iteration1_Loop [2022-12-13 11:33:55,454 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 11:33:55,455 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 11:33:55,481 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:33:55,530 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 11:33:55,530 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 11:33:55,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:33:55,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:33:55,533 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:33:55,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 11:33:55,535 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 11:33:55,535 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 11:33:55,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 11:33:55,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:33:55,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:33:55,558 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:33:55,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 11:33:55,561 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 11:33:55,561 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 11:33:55,589 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 11:33:55,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 11:33:55,593 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 11:33:55,593 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 11:33:55,593 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 11:33:55,593 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 11:33:55,594 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 11:33:55,594 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:33:55,594 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 11:33:55,594 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 11:33:55,594 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-03.c_Iteration1_Loop [2022-12-13 11:33:55,594 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 11:33:55,594 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 11:33:55,595 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:33:55,621 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 11:33:55,626 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 11:33:55,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:33:55,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:33:55,628 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:33:55,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 11:33:55,631 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 [2022-12-13 11:33:55,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:33:55,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 11:33:55,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:33:55,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:33:55,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:33:55,647 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 11:33:55,647 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 11:33:55,651 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 11:33:55,660 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 11:33:55,660 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 11:33:55,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:33:55,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:33:55,693 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:33:55,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 11:33:55,695 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 11:33:55,695 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 11:33:55,696 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 11:33:55,696 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-12-13 11:33:55,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-12-13 11:33:55,701 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 11:33:55,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:33:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:33:55,726 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 11:33:55,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:33:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:33:55,737 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 11:33:55,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:33:55,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:33:55,775 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 11:33:55,777 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:33:55,810 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 36 transitions. Complement of second has 7 states. [2022-12-13 11:33:55,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 11:33:55,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:33:55,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2022-12-13 11:33:55,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 2 letters. [2022-12-13 11:33:55,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 11:33:55,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 4 letters. Loop has 2 letters. [2022-12-13 11:33:55,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 11:33:55,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 4 letters. [2022-12-13 11:33:55,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 11:33:55,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2022-12-13 11:33:55,819 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-12-13 11:33:55,821 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 9 states and 12 transitions. [2022-12-13 11:33:55,822 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-12-13 11:33:55,822 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-12-13 11:33:55,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2022-12-13 11:33:55,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 11:33:55,823 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-12-13 11:33:55,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2022-12-13 11:33:55,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2022-12-13 11:33:55,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:33:55,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2022-12-13 11:33:55,840 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-12-13 11:33:55,840 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-12-13 11:33:55,840 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 11:33:55,840 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2022-12-13 11:33:55,840 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-12-13 11:33:55,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 11:33:55,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 11:33:55,841 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 11:33:55,841 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-12-13 11:33:55,841 INFO L748 eck$LassoCheckResult]: Stem: 80#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 81#L-1 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_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 82#L18-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 75#L18 [2022-12-13 11:33:55,841 INFO L750 eck$LassoCheckResult]: Loop: 75#L18 assume main_~x~0#1 > main_~y~0#1;main_#t~nondet2#1 := ~bitwiseComplement(main_~x~0#1);assume main_#t~nondet2#1 != main_~x~0#1;assume main_~x~0#1 >= 0 || main_#t~nondet2#1 > 0;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 76#L18-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 75#L18 [2022-12-13 11:33:55,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:33:55,841 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-12-13 11:33:55,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:33:55,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324118270] [2022-12-13 11:33:55,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:33:55,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:33:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:33:55,844 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:33:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:33:55,846 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:33:55,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:33:55,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2022-12-13 11:33:55,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:33:55,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751841412] [2022-12-13 11:33:55,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:33:55,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:33:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:33:55,852 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:33:55,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:33:55,854 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:33:55,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:33:55,855 INFO L85 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 1 times [2022-12-13 11:33:55,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:33:55,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471774947] [2022-12-13 11:33:55,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:33:55,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:33:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:33:55,860 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:33:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:33:55,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:33:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:33:55,916 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:33:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:33:55,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 11:33:55 BoogieIcfgContainer [2022-12-13 11:33:55,927 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 11:33:55,928 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:33:55,928 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:33:55,928 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:33:55,928 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:33:55" (3/4) ... [2022-12-13 11:33:55,930 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:33:55,930 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:33:55,931 INFO L158 Benchmark]: Toolchain (without parser) took 1137.36ms. Allocated memory is still 119.5MB. Free memory was 86.2MB in the beginning and 66.1MB in the end (delta: 20.0MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-12-13 11:33:55,931 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:33:55,931 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.09ms. Allocated memory is still 119.5MB. Free memory was 85.8MB in the beginning and 77.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 11:33:55,932 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.76ms. Allocated memory is still 119.5MB. Free memory was 77.0MB in the beginning and 75.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:33:55,932 INFO L158 Benchmark]: Boogie Preprocessor took 18.41ms. Allocated memory is still 119.5MB. Free memory was 75.7MB in the beginning and 74.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:33:55,932 INFO L158 Benchmark]: RCFGBuilder took 176.16ms. Allocated memory is still 119.5MB. Free memory was 74.6MB in the beginning and 66.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 11:33:55,933 INFO L158 Benchmark]: BuchiAutomizer took 715.83ms. Allocated memory is still 119.5MB. Free memory was 66.3MB in the beginning and 66.1MB in the end (delta: 137.1kB). Peak memory consumption was 530.4kB. Max. memory is 16.1GB. [2022-12-13 11:33:55,933 INFO L158 Benchmark]: Witness Printer took 2.60ms. Allocated memory is still 119.5MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:33:55,935 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 192.09ms. Allocated memory is still 119.5MB. Free memory was 85.8MB in the beginning and 77.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.76ms. Allocated memory is still 119.5MB. Free memory was 77.0MB in the beginning and 75.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.41ms. Allocated memory is still 119.5MB. Free memory was 75.7MB in the beginning and 74.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 176.16ms. Allocated memory is still 119.5MB. Free memory was 74.6MB in the beginning and 66.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 715.83ms. Allocated memory is still 119.5MB. Free memory was 66.3MB in the beginning and 66.1MB in the end (delta: 137.1kB). Peak memory consumption was 530.4kB. Max. memory is 16.1GB. * Witness Printer took 2.60ms. Allocated memory is still 119.5MB. Free memory is still 66.1MB. 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) and one module whose termination is unknown.One deterministic module has affine ranking function x and consists of 5 locations. The remainder module has 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. 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, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 8 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq142 hnf94 smp100 dnf100 smp100 tf110 neg95 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 69ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer cannot decide termination for the following lasso because it contains the following overapproximations. Overapproximations C: y = ~x [19] (Reason bitwiseComplement) Lasso Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);" Loop: "assume main_~x~0#1 > main_~y~0#1;main_#t~nondet2#1 := ~bitwiseComplement(main_~x~0#1);assume main_#t~nondet2#1 != main_~x~0#1;assume main_~x~0#1 >= 0 || main_#t~nondet2#1 > 0;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);" RESULT: Ultimate could not prove your program: unable to determine termination [2022-12-13 11:33:55,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 11:33:56,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/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 Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3d454-7553-4c10-ab44-6e630b90d169/bin/uautomizer-uyxdKDjOR8/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN