./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 ff03de63 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-dev-ff03de6 [2021-12-21 22:01:02,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:01:02,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:01:02,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:01:02,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:01:02,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:01:02,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:01:02,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:01:02,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:01:02,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:01:02,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:01:02,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:01:02,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:01:02,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:01:02,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:01:02,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:01:02,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:01:02,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:01:02,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:01:02,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:01:02,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:01:02,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:01:02,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:01:02,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:01:02,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:01:02,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:01:02,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:01:02,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:01:02,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:01:02,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:01:02,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:01:02,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:01:02,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:01:02,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:01:02,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:01:02,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:01:02,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:01:02,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:01:02,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:01:02,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:01:02,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:01:02,701 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-21 22:01:02,731 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:01:02,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:01:02,732 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:01:02,732 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:01:02,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:01:02,733 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:01:02,733 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:01:02,733 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:01:02,734 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:01:02,734 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:01:02,734 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:01:02,735 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:01:02,735 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:01:02,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:01:02,735 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:01:02,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:01:02,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:01:02,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:01:02,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:01:02,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:01:02,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:01:02,736 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:01:02,736 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:01:02,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:01:02,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:01:02,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:01:02,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:01:02,738 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:01:02,738 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:01:02,739 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:01:02,739 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 469311c0017f986a05caefa2da4fc5bc0c8b955df01c1466f03ef72ee537722c [2021-12-21 22:01:02,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:01:02,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:01:02,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:01:02,952 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:01:02,952 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:01:02,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/stpcpy.i [2021-12-21 22:01:03,008 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e5e79c54/b5922034f9704b1da08e6c7f6bb7d73e/FLAG738ca761f [2021-12-21 22:01:03,425 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:01:03,425 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/stpcpy.i [2021-12-21 22:01:03,441 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e5e79c54/b5922034f9704b1da08e6c7f6bb7d73e/FLAG738ca761f [2021-12-21 22:01:03,801 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e5e79c54/b5922034f9704b1da08e6c7f6bb7d73e [2021-12-21 22:01:03,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:01:03,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:01:03,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:01:03,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:01:03,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:01:03,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:01:03" (1/1) ... [2021-12-21 22:01:03,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be4e1b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:03, skipping insertion in model container [2021-12-21 22:01:03,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:01:03" (1/1) ... [2021-12-21 22:01:03,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:01:03,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:01:04,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:01:04,061 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:01:04,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:01:04,119 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:01:04,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:04 WrapperNode [2021-12-21 22:01:04,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:01:04,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:01:04,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:01:04,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:01:04,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:04" (1/1) ... [2021-12-21 22:01:04,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:04" (1/1) ... [2021-12-21 22:01:04,158 INFO L137 Inliner]: procedures = 113, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2021-12-21 22:01:04,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:01:04,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:01:04,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:01:04,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:01:04,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:04" (1/1) ... [2021-12-21 22:01:04,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:04" (1/1) ... [2021-12-21 22:01:04,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:04" (1/1) ... [2021-12-21 22:01:04,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:04" (1/1) ... [2021-12-21 22:01:04,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:04" (1/1) ... [2021-12-21 22:01:04,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:04" (1/1) ... [2021-12-21 22:01:04,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:04" (1/1) ... [2021-12-21 22:01:04,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:01:04,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:01:04,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:01:04,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:01:04,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:04" (1/1) ... [2021-12-21 22:01:04,185 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:04,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:04,204 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) [2021-12-21 22:01:04,206 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 [2021-12-21 22:01:04,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 22:01:04,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 22:01:04,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 22:01:04,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 22:01:04,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:01:04,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:01:04,333 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:01:04,335 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:01:04,517 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:01:04,520 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:01:04,523 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 22:01:04,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:01:04 BoogieIcfgContainer [2021-12-21 22:01:04,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:01:04,525 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:01:04,525 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:01:04,528 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:01:04,528 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:01:04,529 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:01:03" (1/3) ... [2021-12-21 22:01:04,529 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1babb6e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:01:04, skipping insertion in model container [2021-12-21 22:01:04,530 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:01:04,530 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:04" (2/3) ... [2021-12-21 22:01:04,530 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1babb6e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:01:04, skipping insertion in model container [2021-12-21 22:01:04,530 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:01:04,530 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:01:04" (3/3) ... [2021-12-21 22:01:04,531 INFO L388 chiAutomizerObserver]: Analyzing ICFG stpcpy.i [2021-12-21 22:01:04,570 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:01:04,570 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:01:04,570 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:01:04,570 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:01:04,570 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:01:04,570 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:01:04,571 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:01:04,571 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:01:04,579 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) [2021-12-21 22:01:04,590 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-21 22:01:04,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:01:04,591 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:01:04,594 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-21 22:01:04,594 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 22:01:04,594 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:01:04,595 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) [2021-12-21 22:01:04,595 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-21 22:01:04,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:01:04,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:01:04,596 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-21 22:01:04,596 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 22:01:04,600 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#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; 9#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; 11#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; 12#L507-3true [2021-12-21 22:01:04,601 INFO L793 eck$LassoCheckResult]: Loop: 12#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); 6#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; 12#L507-3true [2021-12-21 22:01:04,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:04,604 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2021-12-21 22:01:04,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:04,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875119656] [2021-12-21 22:01:04,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:04,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:04,693 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:01:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:04,720 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:01:04,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:04,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1510, now seen corresponding path program 1 times [2021-12-21 22:01:04,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:04,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509865324] [2021-12-21 22:01:04,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:04,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:04,734 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:01:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:04,742 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:01:04,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:04,744 INFO L85 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2021-12-21 22:01:04,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:04,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667124237] [2021-12-21 22:01:04,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:04,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:04,770 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:01:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:04,790 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:01:05,262 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:01:05,263 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:01:05,263 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:01:05,263 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:01:05,263 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:01:05,264 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:05,264 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:01:05,264 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:01:05,264 INFO L133 ssoRankerPreferences]: Filename of dumped script: stpcpy.i_Iteration1_Lasso [2021-12-21 22:01:05,265 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:01:05,265 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:01:05,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:05,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:05,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:05,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:05,552 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:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:953) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:862) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$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) [2021-12-21 22:01:05,559 INFO L158 Benchmark]: Toolchain (without parser) took 1752.98ms. Allocated memory was 98.6MB in the beginning and 136.3MB in the end (delta: 37.7MB). Free memory was 68.5MB in the beginning and 80.3MB in the end (delta: -11.9MB). Peak memory consumption was 66.8MB. Max. memory is 16.1GB. [2021-12-21 22:01:05,559 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 98.6MB. Free memory is still 56.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:01:05,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.23ms. Allocated memory was 98.6MB in the beginning and 136.3MB in the end (delta: 37.7MB). Free memory was 68.5MB in the beginning and 106.8MB in the end (delta: -38.3MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2021-12-21 22:01:05,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.69ms. Allocated memory is still 136.3MB. Free memory was 106.8MB in the beginning and 105.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:01:05,562 INFO L158 Benchmark]: Boogie Preprocessor took 13.80ms. Allocated memory is still 136.3MB. Free memory was 105.3MB in the beginning and 104.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:01:05,563 INFO L158 Benchmark]: RCFGBuilder took 345.54ms. Allocated memory is still 136.3MB. Free memory was 104.1MB in the beginning and 93.5MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 22:01:05,563 INFO L158 Benchmark]: BuchiAutomizer took 1031.96ms. Allocated memory is still 136.3MB. Free memory was 93.5MB in the beginning and 80.3MB in the end (delta: 13.2MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2021-12-21 22:01:05,568 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 98.6MB. Free memory is still 56.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.23ms. Allocated memory was 98.6MB in the beginning and 136.3MB in the end (delta: 37.7MB). Free memory was 68.5MB in the beginning and 106.8MB in the end (delta: -38.3MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.69ms. Allocated memory is still 136.3MB. Free memory was 106.8MB in the beginning and 105.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.80ms. Allocated memory is still 136.3MB. Free memory was 105.3MB in the beginning and 104.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 345.54ms. Allocated memory is still 136.3MB. Free memory was 104.1MB in the beginning and 93.5MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1031.96ms. Allocated memory is still 136.3MB. Free memory was 93.5MB in the beginning and 80.3MB in the end (delta: 13.2MB). Peak memory consumption was 54.5MB. 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. [2021-12-21 22:01:05,597 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