./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-assume.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a 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_a0aa3e2d-036c-484a-9133-d2163345b6c0/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0aa3e2d-036c-484a-9133-d2163345b6c0/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_a0aa3e2d-036c-484a-9133-d2163345b6c0/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0aa3e2d-036c-484a-9133-d2163345b6c0/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-assume.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0aa3e2d-036c-484a-9133-d2163345b6c0/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_a0aa3e2d-036c-484a-9133-d2163345b6c0/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 8beb7be7ecdb66eb2007be5f75989c5fdc3ddad5d7117f2ded11c36f0703f203 --- 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 20:18:43,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:18:43,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:18:43,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:18:43,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:18:43,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:18:43,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:18:43,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:18:43,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:18:43,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:18:43,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:18:43,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:18:43,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:18:43,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:18:43,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:18:43,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:18:43,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:18:43,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:18:43,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:18:43,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:18:43,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:18:43,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:18:43,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:18:43,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:18:43,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:18:43,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:18:43,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:18:43,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:18:43,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:18:43,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:18:43,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:18:43,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:18:43,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:18:43,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:18:43,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:18:43,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:18:43,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:18:43,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:18:43,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:18:43,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:18:43,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:18:43,633 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0aa3e2d-036c-484a-9133-d2163345b6c0/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-02 20:18:43,658 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:18:43,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:18:43,659 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:18:43,659 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:18:43,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:18:43,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:18:43,661 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:18:43,661 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:18:43,662 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:18:43,662 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:18:43,662 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:18:43,662 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:18:43,663 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:18:43,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:18:43,663 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:18:43,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:18:43,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:18:43,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:18:43,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:18:43,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:18:43,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:18:43,664 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:18:43,665 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:18:43,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:18:43,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:18:43,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:18:43,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:18:43,666 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:18:43,667 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:18:43,667 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_a0aa3e2d-036c-484a-9133-d2163345b6c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0aa3e2d-036c-484a-9133-d2163345b6c0/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8beb7be7ecdb66eb2007be5f75989c5fdc3ddad5d7117f2ded11c36f0703f203 [2022-11-02 20:18:43,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:18:43,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:18:43,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:18:43,950 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:18:43,952 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:18:43,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0aa3e2d-036c-484a-9133-d2163345b6c0/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-bwb/and-assume.i [2022-11-02 20:18:44,062 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0aa3e2d-036c-484a-9133-d2163345b6c0/bin/uautomizer-Dbtcem3rbc/data/72d58ba5d/731eeaa088fc4f0bbbbbfee783d7e7ba/FLAGd69a67444 [2022-11-02 20:18:44,693 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:18:44,694 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0aa3e2d-036c-484a-9133-d2163345b6c0/sv-benchmarks/c/termination-bwb/and-assume.i [2022-11-02 20:18:44,706 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0aa3e2d-036c-484a-9133-d2163345b6c0/bin/uautomizer-Dbtcem3rbc/data/72d58ba5d/731eeaa088fc4f0bbbbbfee783d7e7ba/FLAGd69a67444 [2022-11-02 20:18:44,979 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0aa3e2d-036c-484a-9133-d2163345b6c0/bin/uautomizer-Dbtcem3rbc/data/72d58ba5d/731eeaa088fc4f0bbbbbfee783d7e7ba [2022-11-02 20:18:44,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:18:44,985 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:18:44,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:18:44,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:18:44,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:18:44,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:18:44" (1/1) ... [2022-11-02 20:18:44,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2429ec9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:44, skipping insertion in model container [2022-11-02 20:18:44,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:18:44" (1/1) ... [2022-11-02 20:18:45,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:18:45,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:18:45,292 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-02 20:18:45,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:18:45,445 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:18:45,472 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-02 20:18:45,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:18:45,516 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:18:45,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:45 WrapperNode [2022-11-02 20:18:45,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:18:45,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:18:45,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:18:45,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:18:45,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:45" (1/1) ... [2022-11-02 20:18:45,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:45" (1/1) ... [2022-11-02 20:18:45,571 INFO L138 Inliner]: procedures = 111, calls = 3, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-11-02 20:18:45,571 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:18:45,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:18:45,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:18:45,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:18:45,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:45" (1/1) ... [2022-11-02 20:18:45,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:45" (1/1) ... [2022-11-02 20:18:45,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:45" (1/1) ... [2022-11-02 20:18:45,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:45" (1/1) ... [2022-11-02 20:18:45,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:45" (1/1) ... [2022-11-02 20:18:45,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:45" (1/1) ... [2022-11-02 20:18:45,608 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:45" (1/1) ... [2022-11-02 20:18:45,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:45" (1/1) ... [2022-11-02 20:18:45,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:18:45,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:18:45,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:18:45,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:18:45,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:45" (1/1) ... [2022-11-02 20:18:45,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:18:45,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0aa3e2d-036c-484a-9133-d2163345b6c0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:18:45,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0aa3e2d-036c-484a-9133-d2163345b6c0/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:18:45,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0aa3e2d-036c-484a-9133-d2163345b6c0/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:18:45,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:18:45,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:18:45,808 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:18:45,810 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:18:45,906 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:18:45,913 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:18:45,913 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:18:45,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:18:45 BoogieIcfgContainer [2022-11-02 20:18:45,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:18:45,918 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:18:45,918 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:18:45,922 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:18:45,923 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:18:45,923 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:18:44" (1/3) ... [2022-11-02 20:18:45,924 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64190c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:18:45, skipping insertion in model container [2022-11-02 20:18:45,924 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:18:45,924 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:45" (2/3) ... [2022-11-02 20:18:45,925 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64190c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:18:45, skipping insertion in model container [2022-11-02 20:18:45,925 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:18:45,925 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:18:45" (3/3) ... [2022-11-02 20:18:45,926 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-assume.i [2022-11-02 20:18:45,995 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:18:45,995 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:18:45,995 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:18:45,995 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:18:45,995 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:18:45,996 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:18:45,996 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:18:45,996 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:18:46,000 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 20:18:46,018 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-02 20:18:46,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:18:46,019 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:18:46,034 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-02 20:18:46,034 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-02 20:18:46,034 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:18:46,035 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 20:18:46,036 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-02 20:18:46,036 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:18:46,036 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:18:46,037 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-02 20:18:46,037 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-02 20:18:46,046 INFO L748 eck$LassoCheckResult]: Stem: 3#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~nondet3#1, main_#t~nondet4#1, main_#t~post5#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 4#L535true assume !!(main_~a~0#1 > 0); 6#L536-1true [2022-11-02 20:18:46,047 INFO L750 eck$LassoCheckResult]: Loop: 6#L536-1true assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1;main_~x~0#1 := (if 0 == main_~x~0#1 || 0 == main_~a~0#1 then 0 else (if 1 == main_~a~0#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_~a~0#1))) else (if 1 == main_~x~0#1 then (if 1 == main_~a~0#1 || 0 == main_~a~0#1 then main_~a~0#1 else (if main_~a~0#1 >= 0 then main_~a~0#1 % 2 else ~bitwiseAnd(main_~x~0#1, main_~a~0#1))) else ~bitwiseAnd(main_~x~0#1, main_~a~0#1)))); 6#L536-1true [2022-11-02 20:18:46,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:18:46,054 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2022-11-02 20:18:46,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:18:46,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717430213] [2022-11-02 20:18:46,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:18:46,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:18:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:18:46,151 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:18:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:18:46,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:18:46,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:18:46,180 INFO L85 PathProgramCache]: Analyzing trace with hash 47, now seen corresponding path program 1 times [2022-11-02 20:18:46,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:18:46,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816561414] [2022-11-02 20:18:46,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:18:46,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:18:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:18:46,219 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:18:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:18:46,237 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:18:46,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:18:46,246 INFO L85 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2022-11-02 20:18:46,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:18:46,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180410810] [2022-11-02 20:18:46,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:18:46,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:18:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:18:46,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:18:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:18:46,310 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace