./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.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-memory-alloca/Urban-2013WST-Fig1-alloca.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 6035b877cf5662dbb37e282fa5888bad3b139de1b72c90935b5c8058813605dd --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:59:31,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:59:31,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:59:31,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:59:31,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:59:31,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:59:31,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:59:31,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:59:31,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:59:31,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:59:31,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:59:31,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:59:31,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:59:31,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:59:31,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:59:31,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:59:31,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:59:31,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:59:31,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:59:31,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:59:31,608 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:59:31,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:59:31,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:59:31,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:59:31,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:59:31,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:59:31,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:59:31,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:59:31,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:59:31,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:59:31,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:59:31,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:59:31,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:59:31,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:59:31,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:59:31,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:59:31,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:59:31,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:59:31,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:59:31,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:59:31,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:59:31,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:59:31,626 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-14 14:59:31,655 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:59:31,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:59:31,655 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:59:31,656 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:59:31,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:59:31,657 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:59:31,657 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:59:31,657 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 14:59:31,657 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 14:59:31,658 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 14:59:31,658 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 14:59:31,658 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 14:59:31,658 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 14:59:31,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:59:31,659 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:59:31,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:59:31,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:59:31,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 14:59:31,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 14:59:31,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 14:59:31,660 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:59:31,660 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 14:59:31,660 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:59:31,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 14:59:31,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:59:31,661 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:59:31,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:59:31,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:59:31,661 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 14:59:31,662 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6035b877cf5662dbb37e282fa5888bad3b139de1b72c90935b5c8058813605dd [2022-07-14 14:59:31,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:59:31,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:59:31,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:59:31,848 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:59:31,848 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:59:31,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i [2022-07-14 14:59:31,899 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/057f79cbd/a9cdcb320af4418498d9f0c3348f188e/FLAG44851108d [2022-07-14 14:59:32,293 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:59:32,294 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i [2022-07-14 14:59:32,306 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/057f79cbd/a9cdcb320af4418498d9f0c3348f188e/FLAG44851108d [2022-07-14 14:59:32,314 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/057f79cbd/a9cdcb320af4418498d9f0c3348f188e [2022-07-14 14:59:32,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:59:32,316 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:59:32,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:59:32,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:59:32,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:59:32,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:59:32" (1/1) ... [2022-07-14 14:59:32,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66dffa0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:59:32, skipping insertion in model container [2022-07-14 14:59:32,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:59:32" (1/1) ... [2022-07-14 14:59:32,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:59:32,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:59:32,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:59:32,559 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:59:32,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:59:32,606 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:59:32,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:59:32 WrapperNode [2022-07-14 14:59:32,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:59:32,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:59:32,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:59:32,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:59:32,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:59:32" (1/1) ... [2022-07-14 14:59:32,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:59:32" (1/1) ... [2022-07-14 14:59:32,628 INFO L137 Inliner]: procedures = 109, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-07-14 14:59:32,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:59:32,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:59:32,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:59:32,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:59:32,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:59:32" (1/1) ... [2022-07-14 14:59:32,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:59:32" (1/1) ... [2022-07-14 14:59:32,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:59:32" (1/1) ... [2022-07-14 14:59:32,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:59:32" (1/1) ... [2022-07-14 14:59:32,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:59:32" (1/1) ... [2022-07-14 14:59:32,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:59:32" (1/1) ... [2022-07-14 14:59:32,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:59:32" (1/1) ... [2022-07-14 14:59:32,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:59:32,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:59:32,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:59:32,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:59:32,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:59:32" (1/1) ... [2022-07-14 14:59:32,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:59:32,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:59:32,665 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 14:59:32,674 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 14:59:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:59:32,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:59:32,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:59:32,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:59:32,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:59:32,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:59:32,751 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:59:32,752 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:59:32,803 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:59:32,806 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:59:32,806 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 14:59:32,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:59:32 BoogieIcfgContainer [2022-07-14 14:59:32,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:59:32,808 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 14:59:32,808 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 14:59:32,810 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 14:59:32,811 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:59:32,811 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 02:59:32" (1/3) ... [2022-07-14 14:59:32,822 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ed7b041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 02:59:32, skipping insertion in model container [2022-07-14 14:59:32,822 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:59:32,823 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:59:32" (2/3) ... [2022-07-14 14:59:32,823 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ed7b041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 02:59:32, skipping insertion in model container [2022-07-14 14:59:32,823 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:59:32,823 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:59:32" (3/3) ... [2022-07-14 14:59:32,824 INFO L354 chiAutomizerObserver]: Analyzing ICFG Urban-2013WST-Fig1-alloca.i [2022-07-14 14:59:32,886 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 14:59:32,886 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 14:59:32,886 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 14:59:32,886 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 14:59:32,887 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 14:59:32,887 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 14:59:32,887 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 14:59:32,887 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 14:59:32,911 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 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 14:59:32,921 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-14 14:59:32,925 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:59:32,926 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:59:32,929 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 14:59:32,930 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-14 14:59:32,930 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 14:59:32,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 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 14:59:32,931 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-14 14:59:32,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:59:32,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:59:32,932 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 14:59:32,932 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-14 14:59:32,937 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; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~mem4#1, main_#t~mem5#1, main_#t~mem3#1, main_~x~0#1.base, main_~x~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset; 6#L549-2true [2022-07-14 14:59:32,937 INFO L754 eck$LassoCheckResult]: Loop: 6#L549-2true call main_#t~mem3#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 9#L548-1true assume !!(main_#t~mem3#1 <= 10);havoc main_#t~mem3#1;call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 7#L549true assume !(main_#t~mem4#1 > 6);havoc main_#t~mem4#1; 6#L549-2true [2022-07-14 14:59:32,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:59:32,945 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-14 14:59:32,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:59:32,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605571469] [2022-07-14 14:59:32,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:59:32,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:59:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:59:33,037 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:59:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:59:33,069 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:59:33,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:59:33,071 INFO L85 PathProgramCache]: Analyzing trace with hash 36907, now seen corresponding path program 1 times [2022-07-14 14:59:33,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:59:33,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835991678] [2022-07-14 14:59:33,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:59:33,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:59:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:59:33,091 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:59:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:59:33,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:59:33,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:59:33,110 INFO L85 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2022-07-14 14:59:33,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:59:33,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721031251] [2022-07-14 14:59:33,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:59:33,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:59:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:59:33,140 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:59:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:59:33,161 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:59:33,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 02:59:33 BoogieIcfgContainer [2022-07-14 14:59:33,350 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 14:59:33,350 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 14:59:33,351 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 14:59:33,351 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 14:59:33,351 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:59:32" (3/4) ... [2022-07-14 14:59:33,353 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 14:59:33,373 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 14:59:33,373 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 14:59:33,375 INFO L158 Benchmark]: Toolchain (without parser) took 1057.49ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 61.7MB in the beginning and 76.8MB in the end (delta: -15.1MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-07-14 14:59:33,376 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 92.3MB. Free memory was 49.3MB in the beginning and 49.2MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:59:33,378 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.68ms. Allocated memory is still 92.3MB. Free memory was 61.5MB in the beginning and 63.6MB in the end (delta: -2.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-14 14:59:33,381 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.61ms. Allocated memory is still 92.3MB. Free memory was 63.6MB in the beginning and 61.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:59:33,381 INFO L158 Benchmark]: Boogie Preprocessor took 12.33ms. Allocated memory is still 92.3MB. Free memory was 61.9MB in the beginning and 60.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:59:33,382 INFO L158 Benchmark]: RCFGBuilder took 165.72ms. Allocated memory is still 92.3MB. Free memory was 60.9MB in the beginning and 51.7MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-14 14:59:33,383 INFO L158 Benchmark]: BuchiAutomizer took 542.05ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 51.7MB in the beginning and 78.2MB in the end (delta: -26.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:59:33,383 INFO L158 Benchmark]: Witness Printer took 22.90ms. Allocated memory is still 115.3MB. Free memory was 78.2MB in the beginning and 76.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:59:33,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 92.3MB. Free memory was 49.3MB in the beginning and 49.2MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.68ms. Allocated memory is still 92.3MB. Free memory was 61.5MB in the beginning and 63.6MB in the end (delta: -2.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.61ms. Allocated memory is still 92.3MB. Free memory was 63.6MB in the beginning and 61.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.33ms. Allocated memory is still 92.3MB. Free memory was 61.9MB in the beginning and 60.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 165.72ms. Allocated memory is still 92.3MB. Free memory was 60.9MB in the beginning and 51.7MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 542.05ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 51.7MB in the beginning and 78.2MB in the end (delta: -26.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 22.90ms. Allocated memory is still 115.3MB. Free memory was 78.2MB in the beginning and 76.8MB in the end (delta: 1.4MB). 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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: LassoAnalysisResults: nont1 unkn0 SFLI0 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: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 548]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {x=2, x=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@1269c1f0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@5bb23603=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f5eb3e6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@2a0a8eba=0, NULL=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f5eb3e6=2} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 548]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L547] int* x = __builtin_alloca (sizeof(int)); Loop: [L548] EXPR \read(*x) [L548] COND TRUE *x <= 10 [L549] EXPR \read(*x) [L549] COND FALSE !(*x > 6) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-14 14:59:33,416 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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)