./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-03-false.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a 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_26520af1-729f-416f-9f4d-b5ccab050fa7/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26520af1-729f-416f-9f4d-b5ccab050fa7/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26520af1-729f-416f-9f4d-b5ccab050fa7/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26520af1-729f-416f-9f4d-b5ccab050fa7/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-03-false.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26520af1-729f-416f-9f4d-b5ccab050fa7/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26520af1-729f-416f-9f4d-b5ccab050fa7/bin/uautomizer-Dbtcem3rbc --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 cfd67d5631b4948a1522f37c4b686fa068a561ee1d767737058a32ed6cf067a0 --- 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-5e519f3 [2022-11-02 20:17:27,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:17:27,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:17:27,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:17:27,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:17:27,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:17:27,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:17:27,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:17:27,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:17:27,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:17:27,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:17:27,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:17:27,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:17:27,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:17:27,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:17:27,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:17:27,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:17:27,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:17:27,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:17:27,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:17:27,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:17:27,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:17:27,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:17:27,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:17:27,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:17:27,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:17:27,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:17:27,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:17:27,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:17:27,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:17:27,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:17:27,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:17:27,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:17:27,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:17:27,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:17:27,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:17:27,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:17:27,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:17:27,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:17:27,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:17:27,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:17:27,928 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26520af1-729f-416f-9f4d-b5ccab050fa7/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-02 20:17:27,973 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:17:27,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:17:27,975 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:17:27,975 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:17:27,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:17:27,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:17:27,977 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:17:27,977 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:17:27,978 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:17:27,978 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:17:27,979 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:17:27,979 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:17:27,979 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:17:27,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:17:27,980 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:17:27,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:17:27,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:17:27,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:17:27,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:17:27,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:17:27,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:17:27,981 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:17:27,982 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:17:27,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:17:27,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:17:27,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:17:27,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:17:27,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:17:27,984 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:17:27,984 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_26520af1-729f-416f-9f4d-b5ccab050fa7/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26520af1-729f-416f-9f4d-b5ccab050fa7/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cfd67d5631b4948a1522f37c4b686fa068a561ee1d767737058a32ed6cf067a0 [2022-11-02 20:17:28,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:17:28,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:17:28,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:17:28,356 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:17:28,357 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:17:28,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26520af1-729f-416f-9f4d-b5ccab050fa7/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-bwb/and-03-false.c [2022-11-02 20:17:28,464 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26520af1-729f-416f-9f4d-b5ccab050fa7/bin/uautomizer-Dbtcem3rbc/data/8fb6bb8c3/9d7ad38253714a4a95fa96fbfd0ce20e/FLAG2e506a008 [2022-11-02 20:17:29,013 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:17:29,013 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26520af1-729f-416f-9f4d-b5ccab050fa7/sv-benchmarks/c/termination-bwb/and-03-false.c [2022-11-02 20:17:29,019 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26520af1-729f-416f-9f4d-b5ccab050fa7/bin/uautomizer-Dbtcem3rbc/data/8fb6bb8c3/9d7ad38253714a4a95fa96fbfd0ce20e/FLAG2e506a008 [2022-11-02 20:17:29,371 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26520af1-729f-416f-9f4d-b5ccab050fa7/bin/uautomizer-Dbtcem3rbc/data/8fb6bb8c3/9d7ad38253714a4a95fa96fbfd0ce20e [2022-11-02 20:17:29,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:17:29,377 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:17:29,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:17:29,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:17:29,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:17:29,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:17:29" (1/1) ... [2022-11-02 20:17:29,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dbe0caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:29, skipping insertion in model container [2022-11-02 20:17:29,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:17:29" (1/1) ... [2022-11-02 20:17:29,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:17:29,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:17:29,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:17:29,613 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:17:29,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:17:29,635 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:17:29,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:29 WrapperNode [2022-11-02 20:17:29,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:17:29,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:17:29,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:17:29,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:17:29,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:29" (1/1) ... [2022-11-02 20:17:29,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:29" (1/1) ... [2022-11-02 20:17:29,669 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2022-11-02 20:17:29,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:17:29,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:17:29,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:17:29,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:17:29,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:29" (1/1) ... [2022-11-02 20:17:29,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:29" (1/1) ... [2022-11-02 20:17:29,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:29" (1/1) ... [2022-11-02 20:17:29,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:29" (1/1) ... [2022-11-02 20:17:29,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:29" (1/1) ... [2022-11-02 20:17:29,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:29" (1/1) ... [2022-11-02 20:17:29,685 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:29" (1/1) ... [2022-11-02 20:17:29,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:29" (1/1) ... [2022-11-02 20:17:29,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:17:29,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:17:29,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:17:29,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:17:29,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:29" (1/1) ... [2022-11-02 20:17:29,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:17:29,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26520af1-729f-416f-9f4d-b5ccab050fa7/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:17:29,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26520af1-729f-416f-9f4d-b5ccab050fa7/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:17:29,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26520af1-729f-416f-9f4d-b5ccab050fa7/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:17:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:17:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:17:29,827 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:17:29,829 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:17:29,963 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:17:29,970 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:17:29,971 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:17:29,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:29 BoogieIcfgContainer [2022-11-02 20:17:29,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:17:29,974 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:17:29,974 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:17:29,986 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:17:29,987 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:17:29,987 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:17:29" (1/3) ... [2022-11-02 20:17:29,989 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dbbd898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:17:29, skipping insertion in model container [2022-11-02 20:17:29,989 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:17:29,989 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:29" (2/3) ... [2022-11-02 20:17:29,990 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dbbd898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:17:29, skipping insertion in model container [2022-11-02 20:17:29,990 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:17:29,990 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:29" (3/3) ... [2022-11-02 20:17:29,991 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-03-false.c [2022-11-02 20:17:30,062 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:17:30,062 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:17:30,063 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:17:30,063 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:17:30,063 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:17:30,063 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:17:30,063 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:17:30,064 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:17:30,070 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) [2022-11-02 20:17:30,092 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-02 20:17:30,092 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:17:30,092 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:17:30,099 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:17:30,099 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-02 20:17:30,099 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:17:30,099 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) [2022-11-02 20:17:30,100 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-02 20:17:30,101 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:17:30,101 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:17:30,101 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:17:30,101 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-02 20:17:30,112 INFO L748 eck$LassoCheckResult]: Stem: 4#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~post1#1, main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 5#L16-2true [2022-11-02 20:17:30,112 INFO L750 eck$LassoCheckResult]: Loop: 5#L16-2true assume !!(0 == main_~x~0#1); 2#L16true assume !(main_~x~0#1 >= 0);main_#t~post1#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 5#L16-2true [2022-11-02 20:17:30,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:30,121 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-02 20:17:30,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:30,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160994700] [2022-11-02 20:17:30,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:30,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:30,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:30,219 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:17:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:30,250 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:17:30,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:30,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-11-02 20:17:30,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:30,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97945708] [2022-11-02 20:17:30,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:30,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:30,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:17:30,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:30,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97945708] [2022-11-02 20:17:30,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97945708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:30,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:30,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:17:30,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525717317] [2022-11-02 20:17:30,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:30,389 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-02 20:17:30,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:30,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:17:30,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:17:30,432 INFO L87 Difference]: Start difference. 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, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-02 20:17:30,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:17:30,460 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2022-11-02 20:17:30,461 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 8 transitions. [2022-11-02 20:17:30,462 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-02 20:17:30,466 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 4 transitions. [2022-11-02 20:17:30,467 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-11-02 20:17:30,467 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2022-11-02 20:17:30,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 4 transitions. [2022-11-02 20:17:30,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:30,469 INFO L218 hiAutomatonCegarLoop]: Abstraction has 4 states and 4 transitions. [2022-11-02 20:17:30,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 4 transitions. [2022-11-02 20:17:30,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2022-11-02 20:17:30,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) 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) [2022-11-02 20:17:30,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2022-11-02 20:17:30,498 INFO L240 hiAutomatonCegarLoop]: Abstraction has 4 states and 4 transitions. [2022-11-02 20:17:30,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:17:30,505 INFO L428 stractBuchiCegarLoop]: Abstraction has 4 states and 4 transitions. [2022-11-02 20:17:30,506 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 20:17:30,506 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 4 transitions. [2022-11-02 20:17:30,507 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-02 20:17:30,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:17:30,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:17:30,508 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:17:30,509 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-02 20:17:30,509 INFO L748 eck$LassoCheckResult]: Stem: 27#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 28#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 26#L16-2 [2022-11-02 20:17:30,510 INFO L750 eck$LassoCheckResult]: Loop: 26#L16-2 assume !!(0 == main_~x~0#1); 25#L16 assume main_~x~0#1 >= 0;main_~x~0#1 := (if 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1 then 0 else (if 1 == main_~x~0#1 - 1 then (if 1 == main_~x~0#1 || 0 == main_~x~0#1 then main_~x~0#1 else (if main_~x~0#1 >= 0 then main_~x~0#1 % 2 else ~bitwiseAnd(main_~x~0#1, main_~x~0#1 - 1))) else (if 1 == main_~x~0#1 then (if 1 == main_~x~0#1 - 1 || 0 == main_~x~0#1 - 1 then main_~x~0#1 - 1 else (if main_~x~0#1 - 1 >= 0 then (main_~x~0#1 - 1) % 2 else ~bitwiseAnd(main_~x~0#1, main_~x~0#1 - 1))) else ~bitwiseAnd(main_~x~0#1, main_~x~0#1 - 1)))); 26#L16-2 [2022-11-02 20:17:30,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:30,511 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-11-02 20:17:30,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:30,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644040075] [2022-11-02 20:17:30,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:30,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:30,528 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:17:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:30,530 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:17:30,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:30,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2022-11-02 20:17:30,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:30,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309207705] [2022-11-02 20:17:30,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:30,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:30,572 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:17:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:30,605 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:17:30,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:30,607 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-11-02 20:17:30,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:30,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160308658] [2022-11-02 20:17:30,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:30,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:30,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:30,635 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:17:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:30,661 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:17:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:44,953 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:17:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:17:44,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 08:17:44 BoogieIcfgContainer [2022-11-02 20:17:44,965 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-02 20:17:44,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:17:44,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:17:44,966 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:17:44,967 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:29" (3/4) ... [2022-11-02 20:17:44,970 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:17:44,970 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:17:44,971 INFO L158 Benchmark]: Toolchain (without parser) took 15594.17ms. Allocated memory was 140.5MB in the beginning and 398.5MB in the end (delta: 257.9MB). Free memory was 107.4MB in the beginning and 285.5MB in the end (delta: -178.0MB). Peak memory consumption was 79.5MB. Max. memory is 16.1GB. [2022-11-02 20:17:44,972 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory was 56.0MB in the beginning and 56.0MB in the end (delta: 32.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:17:44,973 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.79ms. Allocated memory is still 140.5MB. Free memory was 107.2MB in the beginning and 117.5MB in the end (delta: -10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:17:44,973 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.55ms. Allocated memory is still 140.5MB. Free memory was 117.5MB in the beginning and 116.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:17:44,974 INFO L158 Benchmark]: Boogie Preprocessor took 17.08ms. Allocated memory is still 140.5MB. Free memory was 116.4MB in the beginning and 115.4MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:17:44,975 INFO L158 Benchmark]: RCFGBuilder took 285.10ms. Allocated memory is still 140.5MB. Free memory was 115.4MB in the beginning and 106.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:17:44,976 INFO L158 Benchmark]: BuchiAutomizer took 14991.74ms. Allocated memory was 140.5MB in the beginning and 398.5MB in the end (delta: 257.9MB). Free memory was 106.6MB in the beginning and 286.2MB in the end (delta: -179.6MB). Peak memory consumption was 80.5MB. Max. memory is 16.1GB. [2022-11-02 20:17:44,976 INFO L158 Benchmark]: Witness Printer took 4.14ms. Allocated memory is still 398.5MB. Free memory was 286.2MB in the beginning and 285.5MB in the end (delta: 705.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:17:44,980 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory was 56.0MB in the beginning and 56.0MB in the end (delta: 32.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.79ms. Allocated memory is still 140.5MB. Free memory was 107.2MB in the beginning and 117.5MB in the end (delta: -10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.55ms. Allocated memory is still 140.5MB. Free memory was 117.5MB in the beginning and 116.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.08ms. Allocated memory is still 140.5MB. Free memory was 116.4MB in the beginning and 115.4MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 285.10ms. Allocated memory is still 140.5MB. Free memory was 115.4MB in the beginning and 106.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 14991.74ms. Allocated memory was 140.5MB in the beginning and 398.5MB in the end (delta: 257.9MB). Free memory was 106.6MB in the beginning and 286.2MB in the end (delta: -179.6MB). Peak memory consumption was 80.5MB. Max. memory is 16.1GB. * Witness Printer took 4.14ms. Allocated memory is still 398.5MB. Free memory was 286.2MB in the beginning and 285.5MB in the end (delta: 705.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one module whose termination is unknown.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 14.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 7 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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&(x-1) [17] (Reason bitwiseAnd) Lasso Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" Loop: "assume !!(0 == main_~x~0#1);" "assume main_~x~0#1 >= 0;main_~x~0#1 := (if 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1 then 0 else (if 1 == main_~x~0#1 - 1 then (if 1 == main_~x~0#1 || 0 == main_~x~0#1 then main_~x~0#1 else (if main_~x~0#1 >= 0 then main_~x~0#1 % 2 else ~bitwiseAnd(main_~x~0#1, main_~x~0#1 - 1))) else (if 1 == main_~x~0#1 then (if 1 == main_~x~0#1 - 1 || 0 == main_~x~0#1 - 1 then main_~x~0#1 - 1 else (if main_~x~0#1 - 1 >= 0 then (main_~x~0#1 - 1) % 2 else ~bitwiseAnd(main_~x~0#1, main_~x~0#1 - 1))) else ~bitwiseAnd(main_~x~0#1, main_~x~0#1 - 1))));" RESULT: Ultimate could not prove your program: unable to determine termination [2022-11-02 20:17:45,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26520af1-729f-416f-9f4d-b5ccab050fa7/bin/uautomizer-Dbtcem3rbc/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_26520af1-729f-416f-9f4d-b5ccab050fa7/bin/uautomizer-Dbtcem3rbc/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