./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-dietlibc/stpcpy.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 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-dietlibc/stpcpy.i -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 469311c0017f986a05caefa2da4fc5bc0c8b955df01c1466f03ef72ee537722c --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:56:35,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:56:35,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:56:35,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:56:35,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:56:35,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:56:35,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:56:35,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:56:35,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:56:35,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:56:35,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:56:35,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:56:35,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:56:35,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:56:35,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:56:35,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:56:35,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:56:35,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:56:35,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:56:35,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:56:35,411 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:56:35,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:56:35,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:56:35,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:56:35,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:56:35,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:56:35,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:56:35,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:56:35,425 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:56:35,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:56:35,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:56:35,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:56:35,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:56:35,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:56:35,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:56:35,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:56:35,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:56:35,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:56:35,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:56:35,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:56:35,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:56:35,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:56:35,440 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-14 14:56:35,462 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:56:35,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:56:35,463 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:56:35,463 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:56:35,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:56:35,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:56:35,464 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:56:35,464 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 14:56:35,464 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 14:56:35,465 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 14:56:35,465 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 14:56:35,465 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 14:56:35,466 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 14:56:35,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:56:35,466 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:56:35,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:56:35,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:56:35,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 14:56:35,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 14:56:35,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 14:56:35,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:56:35,468 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 14:56:35,468 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:56:35,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 14:56:35,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:56:35,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:56:35,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:56:35,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:56:35,469 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 14:56:35,469 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 469311c0017f986a05caefa2da4fc5bc0c8b955df01c1466f03ef72ee537722c [2022-07-14 14:56:35,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:56:35,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:56:35,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:56:35,683 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:56:35,685 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:56:35,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/stpcpy.i [2022-07-14 14:56:35,731 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec529b6f9/2dacc8bc661c4a5cbb63597052a6b13b/FLAG5d0faf76b [2022-07-14 14:56:36,111 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:56:36,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/stpcpy.i [2022-07-14 14:56:36,124 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec529b6f9/2dacc8bc661c4a5cbb63597052a6b13b/FLAG5d0faf76b [2022-07-14 14:56:36,507 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec529b6f9/2dacc8bc661c4a5cbb63597052a6b13b [2022-07-14 14:56:36,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:56:36,510 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:56:36,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:56:36,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:56:36,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:56:36,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:56:36" (1/1) ... [2022-07-14 14:56:36,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6520f7b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:56:36, skipping insertion in model container [2022-07-14 14:56:36,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:56:36" (1/1) ... [2022-07-14 14:56:36,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:56:36,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:56:36,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:56:36,709 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:56:36,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:56:36,748 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:56:36,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:56:36 WrapperNode [2022-07-14 14:56:36,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:56:36,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:56:36,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:56:36,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:56:36,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:56:36" (1/1) ... [2022-07-14 14:56:36,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:56:36" (1/1) ... [2022-07-14 14:56:36,773 INFO L137 Inliner]: procedures = 113, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2022-07-14 14:56:36,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:56:36,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:56:36,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:56:36,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:56:36,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:56:36" (1/1) ... [2022-07-14 14:56:36,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:56:36" (1/1) ... [2022-07-14 14:56:36,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:56:36" (1/1) ... [2022-07-14 14:56:36,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:56:36" (1/1) ... [2022-07-14 14:56:36,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:56:36" (1/1) ... [2022-07-14 14:56:36,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:56:36" (1/1) ... [2022-07-14 14:56:36,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:56:36" (1/1) ... [2022-07-14 14:56:36,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:56:36,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:56:36,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:56:36,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:56:36,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:56:36" (1/1) ... [2022-07-14 14:56:36,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:56:36,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:56:36,820 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) [2022-07-14 14:56:36,825 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 [2022-07-14 14:56:36,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:56:36,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:56:36,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:56:36,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:56:36,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:56:36,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:56:36,904 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:56:36,905 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:56:36,975 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:56:36,978 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:56:36,978 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 14:56:36,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:56:36 BoogieIcfgContainer [2022-07-14 14:56:36,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:56:36,980 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 14:56:36,980 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 14:56:36,983 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 14:56:36,984 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:56:36,984 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 02:56:36" (1/3) ... [2022-07-14 14:56:36,985 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2315c10a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 02:56:36, skipping insertion in model container [2022-07-14 14:56:36,985 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:56:36,985 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:56:36" (2/3) ... [2022-07-14 14:56:36,985 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2315c10a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 02:56:36, skipping insertion in model container [2022-07-14 14:56:36,986 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:56:36,986 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:56:36" (3/3) ... [2022-07-14 14:56:36,987 INFO L354 chiAutomizerObserver]: Analyzing ICFG stpcpy.i [2022-07-14 14:56:37,059 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 14:56:37,059 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 14:56:37,059 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 14:56:37,059 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 14:56:37,059 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 14:56:37,059 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 14:56:37,059 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 14:56:37,059 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 14:56:37,076 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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) [2022-07-14 14:56:37,086 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-14 14:56:37,087 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:56:37,087 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:56:37,090 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-14 14:56:37,090 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-14 14:56:37,090 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 14:56:37,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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) [2022-07-14 14:56:37,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-14 14:56:37,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:56:37,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:56:37,110 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-14 14:56:37,110 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-14 14:56:37,114 INFO L752 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~malloc6#1.base, main_#t~malloc6#1.offset, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 8#L512true assume !(main_~in_len~0#1 < 1);call main_#t~malloc6#1.base, main_#t~malloc6#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc6#1.base, main_#t~malloc6#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 10#L516true assume !(main_~out_len~0#1 < main_~in_len~0#1);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;assume { :begin_inline_stpcpy } true;stpcpy_#in~dst#1.base, stpcpy_#in~dst#1.offset, stpcpy_#in~src#1.base, stpcpy_#in~src#1.offset := main_~out~0#1.base, main_~out~0#1.offset, main_~in~0#1.base, main_~in~0#1.offset;havoc stpcpy_#res#1.base, stpcpy_#res#1.offset;havoc stpcpy_#t~post2#1.base, stpcpy_#t~post2#1.offset, stpcpy_#t~post3#1.base, stpcpy_#t~post3#1.offset, stpcpy_#t~mem4#1, stpcpy_~dst#1.base, stpcpy_~dst#1.offset, stpcpy_~src#1.base, stpcpy_~src#1.offset;stpcpy_~dst#1.base, stpcpy_~dst#1.offset := stpcpy_#in~dst#1.base, stpcpy_#in~dst#1.offset;stpcpy_~src#1.base, stpcpy_~src#1.offset := stpcpy_#in~src#1.base, stpcpy_#in~src#1.offset; 11#L507-3true [2022-07-14 14:56:37,114 INFO L754 eck$LassoCheckResult]: Loop: 11#L507-3true stpcpy_#t~post2#1.base, stpcpy_#t~post2#1.offset := stpcpy_~dst#1.base, stpcpy_~dst#1.offset;stpcpy_~dst#1.base, stpcpy_~dst#1.offset := stpcpy_#t~post2#1.base, 1 + stpcpy_#t~post2#1.offset;stpcpy_#t~post3#1.base, stpcpy_#t~post3#1.offset := stpcpy_~src#1.base, stpcpy_~src#1.offset;stpcpy_~src#1.base, stpcpy_~src#1.offset := stpcpy_#t~post3#1.base, 1 + stpcpy_#t~post3#1.offset;call stpcpy_#t~mem4#1 := read~int(stpcpy_#t~post3#1.base, stpcpy_#t~post3#1.offset, 1);call write~int(stpcpy_#t~mem4#1, stpcpy_#t~post2#1.base, stpcpy_#t~post2#1.offset, 1); 5#L507-1true assume !!(0 != stpcpy_#t~mem4#1);havoc stpcpy_#t~post2#1.base, stpcpy_#t~post2#1.offset;havoc stpcpy_#t~post3#1.base, stpcpy_#t~post3#1.offset;havoc stpcpy_#t~mem4#1; 11#L507-3true [2022-07-14 14:56:37,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:56:37,128 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2022-07-14 14:56:37,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:56:37,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860917101] [2022-07-14 14:56:37,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:56:37,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:56:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:56:37,263 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:56:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:56:37,305 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:56:37,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:56:37,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1510, now seen corresponding path program 1 times [2022-07-14 14:56:37,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:56:37,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209321195] [2022-07-14 14:56:37,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:56:37,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:56:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:56:37,340 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:56:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:56:37,349 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:56:37,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:56:37,350 INFO L85 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2022-07-14 14:56:37,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:56:37,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100228661] [2022-07-14 14:56:37,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:56:37,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:56:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:56:37,385 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:56:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:56:37,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:56:37,917 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:56:37,918 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:56:37,918 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:56:37,918 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:56:37,918 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 14:56:37,918 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:56:37,918 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:56:37,919 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:56:37,919 INFO L133 ssoRankerPreferences]: Filename of dumped script: stpcpy.i_Iteration1_Lasso [2022-07-14 14:56:37,919 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:56:37,920 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:56:37,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:56:37,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:56:37,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:56:37,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:56:38,205 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.IllegalArgumentException at de.uni_freiburg.informatik.ultimate.util.datastructures.ScopedHashMap.put(ScopedHashMap.java:331) at java.base/java.util.AbstractMap.putAll(AbstractMap.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.PureSubstitution.(PureSubstitution.java:81) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Substitution.(Substitution.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Substitution.apply(Substitution.java:59) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceMapReads(MapEliminator.java:518) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:342) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:111) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:280) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:601) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:914) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:823) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:247) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.runCegarLoop(AbstractBuchiCegarLoop.java:310) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:363) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-14 14:56:38,209 INFO L158 Benchmark]: Toolchain (without parser) took 1697.37ms. Allocated memory was 79.7MB in the beginning and 111.1MB in the end (delta: 31.5MB). Free memory was 41.0MB in the beginning and 65.4MB in the end (delta: -24.4MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2022-07-14 14:56:38,209 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 79.7MB. Free memory was 58.4MB in the beginning and 58.4MB in the end (delta: 47.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:56:38,210 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.42ms. Allocated memory was 79.7MB in the beginning and 111.1MB in the end (delta: 31.5MB). Free memory was 40.8MB in the beginning and 79.0MB in the end (delta: -38.1MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2022-07-14 14:56:38,211 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.92ms. Allocated memory is still 111.1MB. Free memory was 79.0MB in the beginning and 77.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:56:38,212 INFO L158 Benchmark]: Boogie Preprocessor took 13.59ms. Allocated memory is still 111.1MB. Free memory was 77.3MB in the beginning and 76.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:56:38,212 INFO L158 Benchmark]: RCFGBuilder took 192.03ms. Allocated memory is still 111.1MB. Free memory was 76.0MB in the beginning and 66.1MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-14 14:56:38,213 INFO L158 Benchmark]: BuchiAutomizer took 1226.79ms. Allocated memory is still 111.1MB. Free memory was 66.1MB in the beginning and 65.4MB in the end (delta: 637.5kB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2022-07-14 14:56:38,219 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 79.7MB. Free memory was 58.4MB in the beginning and 58.4MB in the end (delta: 47.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.42ms. Allocated memory was 79.7MB in the beginning and 111.1MB in the end (delta: 31.5MB). Free memory was 40.8MB in the beginning and 79.0MB in the end (delta: -38.1MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.92ms. Allocated memory is still 111.1MB. Free memory was 79.0MB in the beginning and 77.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.59ms. Allocated memory is still 111.1MB. Free memory was 77.3MB in the beginning and 76.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 192.03ms. Allocated memory is still 111.1MB. Free memory was 76.0MB in the beginning and 66.1MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1226.79ms. Allocated memory is still 111.1MB. Free memory was 66.1MB in the beginning and 65.4MB in the end (delta: 637.5kB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: IllegalArgumentException: null de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: IllegalArgumentException: null: de.uni_freiburg.informatik.ultimate.util.datastructures.ScopedHashMap.put(ScopedHashMap.java:331) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-07-14 14:56:38,244 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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: ERROR: ExceptionOrErrorResult: IllegalArgumentException: null