./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/not-04.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31839fea-3659-47b4-8b90-87beaaed33ef/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31839fea-3659-47b4-8b90-87beaaed33ef/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_31839fea-3659-47b4-8b90-87beaaed33ef/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31839fea-3659-47b4-8b90-87beaaed33ef/bin/uautomizer-vX5HgA9Q3a/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/not-04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31839fea-3659-47b4-8b90-87beaaed33ef/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_31839fea-3659-47b4-8b90-87beaaed33ef/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 6a2e67ae2e22c522227b4a149e1522cfb51ba347d38406e51fd570ee242daac0 --- 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 14:02:10,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 14:02:10,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 14:02:10,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 14:02:10,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 14:02:10,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 14:02:10,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 14:02:10,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 14:02:10,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 14:02:10,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 14:02:10,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 14:02:10,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 14:02:10,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 14:02:10,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 14:02:10,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 14:02:10,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 14:02:10,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 14:02:10,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 14:02:10,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 14:02:10,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 14:02:10,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 14:02:10,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 14:02:10,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 14:02:10,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 14:02:10,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 14:02:10,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 14:02:10,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 14:02:10,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 14:02:10,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 14:02:10,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 14:02:10,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 14:02:10,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 14:02:10,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 14:02:10,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 14:02:10,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 14:02:10,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 14:02:10,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 14:02:10,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 14:02:10,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 14:02:10,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 14:02:10,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 14:02:10,840 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31839fea-3659-47b4-8b90-87beaaed33ef/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-21 14:02:10,866 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 14:02:10,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 14:02:10,866 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 14:02:10,867 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 14:02:10,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 14:02:10,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 14:02:10,868 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 14:02:10,869 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-21 14:02:10,869 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-21 14:02:10,869 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-21 14:02:10,869 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-21 14:02:10,870 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-21 14:02:10,870 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-21 14:02:10,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 14:02:10,870 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 14:02:10,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 14:02:10,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 14:02:10,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-21 14:02:10,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-21 14:02:10,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-21 14:02:10,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 14:02:10,872 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-21 14:02:10,872 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 14:02:10,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-21 14:02:10,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 14:02:10,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 14:02:10,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 14:02:10,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 14:02:10,875 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-21 14:02:10,875 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_31839fea-3659-47b4-8b90-87beaaed33ef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31839fea-3659-47b4-8b90-87beaaed33ef/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a2e67ae2e22c522227b4a149e1522cfb51ba347d38406e51fd570ee242daac0 [2022-11-21 14:02:11,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 14:02:11,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 14:02:11,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 14:02:11,282 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 14:02:11,283 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 14:02:11,284 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31839fea-3659-47b4-8b90-87beaaed33ef/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/termination-bwb/not-04.c [2022-11-21 14:02:14,430 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 14:02:14,695 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 14:02:14,697 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31839fea-3659-47b4-8b90-87beaaed33ef/sv-benchmarks/c/termination-bwb/not-04.c [2022-11-21 14:02:14,702 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31839fea-3659-47b4-8b90-87beaaed33ef/bin/uautomizer-vX5HgA9Q3a/data/2b0b3ecba/5649985fa7694559a6571ff2f7d8cdc3/FLAG392f8b3be [2022-11-21 14:02:14,718 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31839fea-3659-47b4-8b90-87beaaed33ef/bin/uautomizer-vX5HgA9Q3a/data/2b0b3ecba/5649985fa7694559a6571ff2f7d8cdc3 [2022-11-21 14:02:14,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 14:02:14,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 14:02:14,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 14:02:14,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 14:02:14,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 14:02:14,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:02:14" (1/1) ... [2022-11-21 14:02:14,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40dee168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:14, skipping insertion in model container [2022-11-21 14:02:14,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:02:14" (1/1) ... [2022-11-21 14:02:14,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 14:02:14,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 14:02:14,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 14:02:14,982 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 14:02:14,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 14:02:15,015 INFO L208 MainTranslator]: Completed translation [2022-11-21 14:02:15,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:15 WrapperNode [2022-11-21 14:02:15,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 14:02:15,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 14:02:15,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 14:02:15,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 14:02:15,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:15" (1/1) ... [2022-11-21 14:02:15,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:15" (1/1) ... [2022-11-21 14:02:15,052 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-11-21 14:02:15,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 14:02:15,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 14:02:15,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 14:02:15,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 14:02:15,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:15" (1/1) ... [2022-11-21 14:02:15,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:15" (1/1) ... [2022-11-21 14:02:15,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:15" (1/1) ... [2022-11-21 14:02:15,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:15" (1/1) ... [2022-11-21 14:02:15,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:15" (1/1) ... [2022-11-21 14:02:15,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:15" (1/1) ... [2022-11-21 14:02:15,077 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:15" (1/1) ... [2022-11-21 14:02:15,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:15" (1/1) ... [2022-11-21 14:02:15,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 14:02:15,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 14:02:15,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 14:02:15,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 14:02:15,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:15" (1/1) ... [2022-11-21 14:02:15,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 14:02:15,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31839fea-3659-47b4-8b90-87beaaed33ef/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 14:02:15,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31839fea-3659-47b4-8b90-87beaaed33ef/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 14:02:15,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31839fea-3659-47b4-8b90-87beaaed33ef/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-21 14:02:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 14:02:15,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 14:02:15,230 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 14:02:15,233 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 14:02:15,321 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 14:02:15,329 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 14:02:15,329 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 14:02:15,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:02:15 BoogieIcfgContainer [2022-11-21 14:02:15,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 14:02:15,333 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-21 14:02:15,333 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-21 14:02:15,338 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-21 14:02:15,339 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 14:02:15,339 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 02:02:14" (1/3) ... [2022-11-21 14:02:15,341 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d9dd8f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 02:02:15, skipping insertion in model container [2022-11-21 14:02:15,341 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 14:02:15,341 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:15" (2/3) ... [2022-11-21 14:02:15,342 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d9dd8f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 02:02:15, skipping insertion in model container [2022-11-21 14:02:15,342 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 14:02:15,342 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:02:15" (3/3) ... [2022-11-21 14:02:15,344 INFO L332 chiAutomizerObserver]: Analyzing ICFG not-04.c [2022-11-21 14:02:15,405 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-21 14:02:15,405 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-21 14:02:15,405 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-21 14:02:15,406 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-21 14:02:15,406 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-21 14:02:15,406 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-21 14:02:15,406 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-21 14:02:15,406 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-21 14:02:15,411 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) [2022-11-21 14:02:15,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-21 14:02:15,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 14:02:15,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 14:02:15,433 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-21 14:02:15,433 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-21 14:02:15,434 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-21 14:02:15,434 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) [2022-11-21 14:02:15,435 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-21 14:02:15,435 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 14:02:15,435 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 14:02:15,436 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-21 14:02:15,436 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-21 14:02:15,445 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#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;main_~a~0#1 := 0; 6#L18-2true [2022-11-21 14:02:15,445 INFO L750 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(0 != main_~y~0#1); 4#L18true assume !(main_~x~0#1 <= 0 || main_~y~0#1 <= 0);main_#t~nondet2#1 := ~bitwiseComplement(main_~y~0#1);assume main_#t~nondet2#1 != main_~y~0#1;assume main_~y~0#1 >= 0 || main_#t~nondet2#1 > 0;main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 6#L18-2true [2022-11-21 14:02:15,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:15,452 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-21 14:02:15,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:15,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070615685] [2022-11-21 14:02:15,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:15,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 14:02:15,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 14:02:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 14:02:15,627 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 14:02:15,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:15,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-11-21 14:02:15,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:15,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330339321] [2022-11-21 14:02:15,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:15,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 14:02:15,658 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 14:02:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 14:02:15,671 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 14:02:15,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:15,674 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-11-21 14:02:15,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:15,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396106213] [2022-11-21 14:02:15,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:15,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 14:02:15,702 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 14:02:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 14:02:15,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 14:02:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 14:02:15,886 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 14:02:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 14:02:15,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 02:02:15 BoogieIcfgContainer [2022-11-21 14:02:15,898 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-21 14:02:15,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 14:02:15,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 14:02:15,899 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 14:02:15,900 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:02:15" (3/4) ... [2022-11-21 14:02:15,903 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 14:02:15,903 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 14:02:15,905 INFO L158 Benchmark]: Toolchain (without parser) took 1178.17ms. Allocated memory is still 190.8MB. Free memory was 161.9MB in the beginning and 127.4MB in the end (delta: 34.5MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. [2022-11-21 14:02:15,905 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 130.0MB. Free memory was 98.2MB in the beginning and 98.0MB in the end (delta: 141.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 14:02:15,906 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.33ms. Allocated memory is still 190.8MB. Free memory was 161.9MB in the beginning and 156.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-21 14:02:15,907 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.20ms. Allocated memory is still 190.8MB. Free memory was 156.8MB in the beginning and 155.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 14:02:15,908 INFO L158 Benchmark]: Boogie Preprocessor took 26.44ms. Allocated memory is still 190.8MB. Free memory was 155.7MB in the beginning and 154.7MB in the end (delta: 989.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 14:02:15,908 INFO L158 Benchmark]: RCFGBuilder took 249.67ms. Allocated memory is still 190.8MB. Free memory was 153.7MB in the beginning and 145.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 14:02:15,909 INFO L158 Benchmark]: BuchiAutomizer took 565.12ms. Allocated memory is still 190.8MB. Free memory was 145.3MB in the beginning and 127.4MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 14:02:15,910 INFO L158 Benchmark]: Witness Printer took 4.31ms. Allocated memory is still 190.8MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 14:02:15,913 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 130.0MB. Free memory was 98.2MB in the beginning and 98.0MB in the end (delta: 141.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.33ms. Allocated memory is still 190.8MB. Free memory was 161.9MB in the beginning and 156.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.20ms. Allocated memory is still 190.8MB. Free memory was 156.8MB in the beginning and 155.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.44ms. Allocated memory is still 190.8MB. Free memory was 155.7MB in the beginning and 154.7MB in the end (delta: 989.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 249.67ms. Allocated memory is still 190.8MB. Free memory was 153.7MB in the beginning and 145.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 565.12ms. Allocated memory is still 190.8MB. Free memory was 145.3MB in the beginning and 127.4MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.31ms. Allocated memory is still 190.8MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one module whose termination is unknown. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s 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: x = ~y [21] (Reason bitwiseComplement) Lasso Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#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;main_~a~0#1 := 0;" Loop: "assume !!(0 != main_~y~0#1);" "assume !(main_~x~0#1 <= 0 || main_~y~0#1 <= 0);main_#t~nondet2#1 := ~bitwiseComplement(main_~y~0#1);assume main_#t~nondet2#1 != main_~y~0#1;assume main_~y~0#1 >= 0 || main_#t~nondet2#1 > 0;main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" RESULT: Ultimate could not prove your program: unable to determine termination [2022-11-21 14:02:15,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31839fea-3659-47b4-8b90-87beaaed33ef/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 Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31839fea-3659-47b4-8b90-87beaaed33ef/bin/uautomizer-vX5HgA9Q3a/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