./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/WhileFalse.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 574ddb4e Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/WhileFalse.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 6bafde5168b708b72da7f2587edb5230d20fcc9c2ad1a62f6bbb27f7dfec2f68 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 09:39:23,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 09:39:23,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 09:39:23,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 09:39:23,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 09:39:23,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 09:39:23,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 09:39:23,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 09:39:23,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 09:39:23,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 09:39:23,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 09:39:23,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 09:39:23,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 09:39:23,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 09:39:23,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 09:39:23,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 09:39:23,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 09:39:23,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 09:39:23,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 09:39:23,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 09:39:23,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 09:39:23,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 09:39:23,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 09:39:23,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 09:39:23,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 09:39:23,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 09:39:23,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 09:39:23,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 09:39:23,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 09:39:23,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 09:39:23,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 09:39:23,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 09:39:23,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 09:39:23,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 09:39:23,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 09:39:23,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 09:39:23,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 09:39:23,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 09:39:23,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 09:39:23,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 09:39:23,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 09:39:23,512 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-17 09:39:23,531 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 09:39:23,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 09:39:23,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 09:39:23,532 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 09:39:23,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 09:39:23,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 09:39:23,533 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 09:39:23,533 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-17 09:39:23,534 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-17 09:39:23,534 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-17 09:39:23,534 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-17 09:39:23,534 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-17 09:39:23,535 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-17 09:39:23,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 09:39:23,535 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 09:39:23,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 09:39:23,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 09:39:23,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-17 09:39:23,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-17 09:39:23,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-17 09:39:23,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 09:39:23,536 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-17 09:39:23,536 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 09:39:23,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-17 09:39:23,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 09:39:23,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 09:39:23,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 09:39:23,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 09:39:23,538 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-17 09:39:23,538 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bafde5168b708b72da7f2587edb5230d20fcc9c2ad1a62f6bbb27f7dfec2f68 [2023-02-17 09:39:23,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 09:39:23,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 09:39:23,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 09:39:23,746 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 09:39:23,747 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 09:39:23,748 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/WhileFalse.c [2023-02-17 09:39:24,718 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 09:39:24,849 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 09:39:24,850 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/WhileFalse.c [2023-02-17 09:39:24,854 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b5fcceb6/234dcaa696dc47aaa10da2eeb479cfd3/FLAG337cd07f8 [2023-02-17 09:39:24,865 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b5fcceb6/234dcaa696dc47aaa10da2eeb479cfd3 [2023-02-17 09:39:24,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 09:39:24,867 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 09:39:24,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 09:39:24,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 09:39:24,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 09:39:24,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:39:24" (1/1) ... [2023-02-17 09:39:24,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b037454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:24, skipping insertion in model container [2023-02-17 09:39:24,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:39:24" (1/1) ... [2023-02-17 09:39:24,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 09:39:24,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 09:39:24,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:39:24,964 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 09:39:24,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:39:24,978 INFO L208 MainTranslator]: Completed translation [2023-02-17 09:39:24,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:24 WrapperNode [2023-02-17 09:39:24,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 09:39:24,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 09:39:24,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 09:39:24,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 09:39:24,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:24" (1/1) ... [2023-02-17 09:39:24,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:24" (1/1) ... [2023-02-17 09:39:24,996 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 8 [2023-02-17 09:39:24,996 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 09:39:24,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 09:39:24,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 09:39:24,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 09:39:25,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:24" (1/1) ... [2023-02-17 09:39:25,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:24" (1/1) ... [2023-02-17 09:39:25,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:24" (1/1) ... [2023-02-17 09:39:25,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:24" (1/1) ... [2023-02-17 09:39:25,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:24" (1/1) ... [2023-02-17 09:39:25,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:24" (1/1) ... [2023-02-17 09:39:25,006 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:24" (1/1) ... [2023-02-17 09:39:25,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:24" (1/1) ... [2023-02-17 09:39:25,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 09:39:25,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 09:39:25,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 09:39:25,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 09:39:25,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:24" (1/1) ... [2023-02-17 09:39:25,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:39:25,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:39:25,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:39:25,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-02-17 09:39:25,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 09:39:25,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 09:39:25,102 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 09:39:25,103 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 09:39:25,129 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 09:39:25,133 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 09:39:25,133 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 09:39:25,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:39:25 BoogieIcfgContainer [2023-02-17 09:39:25,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 09:39:25,135 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-17 09:39:25,135 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-17 09:39:25,137 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-17 09:39:25,138 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 09:39:25,138 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.02 09:39:24" (1/3) ... [2023-02-17 09:39:25,139 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33a08865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 09:39:25, skipping insertion in model container [2023-02-17 09:39:25,139 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 09:39:25,139 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:39:24" (2/3) ... [2023-02-17 09:39:25,139 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33a08865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 09:39:25, skipping insertion in model container [2023-02-17 09:39:25,139 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 09:39:25,139 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:39:25" (3/3) ... [2023-02-17 09:39:25,140 INFO L332 chiAutomizerObserver]: Analyzing ICFG WhileFalse.c [2023-02-17 09:39:25,173 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-17 09:39:25,173 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-17 09:39:25,173 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-17 09:39:25,173 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-17 09:39:25,173 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-17 09:39:25,173 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-17 09:39:25,173 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-17 09:39:25,173 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-17 09:39:25,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2023-02-17 09:39:25,187 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-17 09:39:25,187 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 09:39:25,187 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 09:39:25,190 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-17 09:39:25,191 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-17 09:39:25,191 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-17 09:39:25,191 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2023-02-17 09:39:25,192 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-17 09:39:25,192 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 09:39:25,192 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 09:39:25,192 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-17 09:39:25,192 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-17 09:39:25,197 INFO L748 eck$LassoCheckResult]: Stem: 4#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1; 6#L14-2true [2023-02-17 09:39:25,198 INFO L750 eck$LassoCheckResult]: Loop: 6#L14-2true assume !!(0 != ~unnamed0~0~false); 6#L14-2true [2023-02-17 09:39:25,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:39:25,202 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-17 09:39:25,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:39:25,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512494531] [2023-02-17 09:39:25,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:39:25,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:39:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:39:25,256 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:39:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:39:25,268 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:39:25,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:39:25,270 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-02-17 09:39:25,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:39:25,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105525028] [2023-02-17 09:39:25,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:39:25,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:39:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:39:25,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:39:25,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:39:25,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105525028] [2023-02-17 09:39:25,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105525028] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:39:25,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:39:25,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-02-17 09:39:25,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020542388] [2023-02-17 09:39:25,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:39:25,289 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-02-17 09:39:25,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:39:25,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-17 09:39:25,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-17 09:39:25,311 INFO L87 Difference]: Start difference. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2023-02-17 09:39:25,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:39:25,315 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2023-02-17 09:39:25,316 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 6 transitions. [2023-02-17 09:39:25,317 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-17 09:39:25,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 0 states and 0 transitions. [2023-02-17 09:39:25,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-17 09:39:25,319 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-17 09:39:25,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-17 09:39:25,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-17 09:39:25,319 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 09:39:25,319 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 09:39:25,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-17 09:39:25,322 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 09:39:25,322 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-17 09:39:25,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-17 09:39:25,323 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-17 09:39:25,323 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-17 09:39:25,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 09:39:25 BoogieIcfgContainer [2023-02-17 09:39:25,327 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-17 09:39:25,328 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 09:39:25,328 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 09:39:25,328 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 09:39:25,328 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:39:25" (3/4) ... [2023-02-17 09:39:25,330 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-17 09:39:25,330 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 09:39:25,331 INFO L158 Benchmark]: Toolchain (without parser) took 463.40ms. Allocated memory is still 138.4MB. Free memory was 98.5MB in the beginning and 62.4MB in the end (delta: 36.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-02-17 09:39:25,332 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 138.4MB. Free memory was 108.5MB in the beginning and 108.5MB in the end (delta: 18.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 09:39:25,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 110.85ms. Allocated memory is still 138.4MB. Free memory was 98.0MB in the beginning and 89.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-17 09:39:25,333 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.58ms. Allocated memory is still 138.4MB. Free memory was 89.1MB in the beginning and 88.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 09:39:25,334 INFO L158 Benchmark]: Boogie Preprocessor took 10.09ms. Allocated memory is still 138.4MB. Free memory was 88.0MB in the beginning and 87.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 09:39:25,335 INFO L158 Benchmark]: RCFGBuilder took 127.05ms. Allocated memory is still 138.4MB. Free memory was 87.0MB in the beginning and 79.1MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-17 09:39:25,339 INFO L158 Benchmark]: BuchiAutomizer took 192.28ms. Allocated memory is still 138.4MB. Free memory was 79.1MB in the beginning and 62.8MB in the end (delta: 16.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-17 09:39:25,339 INFO L158 Benchmark]: Witness Printer took 2.68ms. Allocated memory is still 138.4MB. Free memory was 62.8MB in the beginning and 62.4MB in the end (delta: 473.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 09:39:25,342 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 138.4MB. Free memory was 108.5MB in the beginning and 108.5MB in the end (delta: 18.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 110.85ms. Allocated memory is still 138.4MB. Free memory was 98.0MB in the beginning and 89.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.58ms. Allocated memory is still 138.4MB. Free memory was 89.1MB in the beginning and 88.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 10.09ms. Allocated memory is still 138.4MB. Free memory was 88.0MB in the beginning and 87.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 127.05ms. Allocated memory is still 138.4MB. Free memory was 87.0MB in the beginning and 79.1MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 192.28ms. Allocated memory is still 138.4MB. Free memory was 79.1MB in the beginning and 62.8MB in the end (delta: 16.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 2.68ms. Allocated memory is still 138.4MB. Free memory was 62.8MB in the beginning and 62.4MB in the end (delta: 473.0kB). Peak memory consumption was 2.1MB. 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). 1 modules have a trivial ranking function, the largest among these consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.0s. 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 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: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 6 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 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: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-17 09:39:25,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE