./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 26d01a9c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 08:53:07,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 08:53:07,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 08:53:07,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 08:53:07,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 08:53:07,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 08:53:07,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 08:53:07,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 08:53:07,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 08:53:07,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 08:53:07,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 08:53:07,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 08:53:07,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 08:53:07,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 08:53:07,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 08:53:07,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 08:53:07,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 08:53:07,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 08:53:07,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 08:53:07,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 08:53:07,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 08:53:07,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 08:53:07,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 08:53:07,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 08:53:07,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 08:53:07,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 08:53:07,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 08:53:07,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 08:53:07,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 08:53:07,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 08:53:07,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 08:53:07,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 08:53:07,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 08:53:07,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 08:53:07,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 08:53:07,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 08:53:07,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 08:53:07,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 08:53:07,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 08:53:07,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 08:53:07,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 08:53:07,562 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-18 08:53:07,588 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 08:53:07,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 08:53:07,589 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 08:53:07,589 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 08:53:07,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 08:53:07,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 08:53:07,591 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 08:53:07,591 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-18 08:53:07,591 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-18 08:53:07,591 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-18 08:53:07,592 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-18 08:53:07,592 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-18 08:53:07,592 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-18 08:53:07,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 08:53:07,592 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 08:53:07,592 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 08:53:07,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 08:53:07,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-18 08:53:07,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-18 08:53:07,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-18 08:53:07,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 08:53:07,593 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-18 08:53:07,593 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 08:53:07,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-18 08:53:07,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 08:53:07,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 08:53:07,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 08:53:07,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 08:53:07,595 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-18 08:53:07,595 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 [2023-02-18 08:53:07,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 08:53:07,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 08:53:07,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 08:53:07,815 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 08:53:07,816 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 08:53:07,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2023-02-18 08:53:08,987 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 08:53:09,223 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 08:53:09,225 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2023-02-18 08:53:09,231 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83ecf07de/283fe2f9d53848fc85c9b1728847e609/FLAG684db82fa [2023-02-18 08:53:09,251 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83ecf07de/283fe2f9d53848fc85c9b1728847e609 [2023-02-18 08:53:09,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 08:53:09,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 08:53:09,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 08:53:09,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 08:53:09,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 08:53:09,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:53:09" (1/1) ... [2023-02-18 08:53:09,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55de857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:09, skipping insertion in model container [2023-02-18 08:53:09,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:53:09" (1/1) ... [2023-02-18 08:53:09,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 08:53:09,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 08:53:09,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:53:09,511 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 08:53:09,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:53:09,555 INFO L208 MainTranslator]: Completed translation [2023-02-18 08:53:09,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:09 WrapperNode [2023-02-18 08:53:09,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 08:53:09,570 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 08:53:09,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 08:53:09,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 08:53:09,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:09" (1/1) ... [2023-02-18 08:53:09,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:09" (1/1) ... [2023-02-18 08:53:09,611 INFO L138 Inliner]: procedures = 8, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2023-02-18 08:53:09,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 08:53:09,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 08:53:09,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 08:53:09,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 08:53:09,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:09" (1/1) ... [2023-02-18 08:53:09,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:09" (1/1) ... [2023-02-18 08:53:09,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:09" (1/1) ... [2023-02-18 08:53:09,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:09" (1/1) ... [2023-02-18 08:53:09,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:09" (1/1) ... [2023-02-18 08:53:09,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:09" (1/1) ... [2023-02-18 08:53:09,656 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:09" (1/1) ... [2023-02-18 08:53:09,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:09" (1/1) ... [2023-02-18 08:53:09,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 08:53:09,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 08:53:09,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 08:53:09,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 08:53:09,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:09" (1/1) ... [2023-02-18 08:53:09,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:09,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:09,726 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:53:09,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-02-18 08:53:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-18 08:53:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 08:53:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 08:53:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-18 08:53:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-18 08:53:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-18 08:53:09,798 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 08:53:09,799 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 08:53:09,893 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 08:53:09,898 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 08:53:09,898 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 08:53:09,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:53:09 BoogieIcfgContainer [2023-02-18 08:53:09,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 08:53:09,901 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-18 08:53:09,901 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-18 08:53:09,905 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-18 08:53:09,905 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 08:53:09,906 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.02 08:53:09" (1/3) ... [2023-02-18 08:53:09,906 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@436a8446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.02 08:53:09, skipping insertion in model container [2023-02-18 08:53:09,906 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 08:53:09,907 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:09" (2/3) ... [2023-02-18 08:53:09,908 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@436a8446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.02 08:53:09, skipping insertion in model container [2023-02-18 08:53:09,908 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 08:53:09,908 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:53:09" (3/3) ... [2023-02-18 08:53:09,912 INFO L332 chiAutomizerObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2023-02-18 08:53:09,959 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-18 08:53:09,959 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-18 08:53:09,959 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-18 08:53:09,959 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-18 08:53:09,959 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-18 08:53:09,960 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-18 08:53:09,960 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-18 08:53:09,960 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-18 08:53:09,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:53:09,981 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-18 08:53:09,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:53:09,982 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:53:09,985 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-18 08:53:09,985 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-18 08:53:09,985 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-18 08:53:09,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:53:09,987 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-18 08:53:09,987 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:53:09,987 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:53:09,987 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-18 08:53:09,987 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-18 08:53:09,993 INFO L748 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~mem2#1, main_#t~nondet3#1, main_#t~mem1#1, main_~#a~0#1.base, main_~#a~0#1.offset;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);call write~int(main_#t~nondet0#1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~nondet0#1; 6#L13-3true [2023-02-18 08:53:09,994 INFO L750 eck$LassoCheckResult]: Loop: 6#L13-3true call main_#t~mem1#1 := read~int(main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4); 3#L13-1true assume !!(main_#t~mem1#1 >= 0);havoc main_#t~mem1#1;call main_#t~mem2#1 := read~int(main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);call write~int(main_#t~mem2#1 - 1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~mem2#1;call write~int(main_#t~nondet3#1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~nondet3#1; 6#L13-3true [2023-02-18 08:53:09,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:09,998 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-18 08:53:10,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:53:10,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142473582] [2023-02-18 08:53:10,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:53:10,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:53:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:10,084 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:53:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:10,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:53:10,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:10,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2023-02-18 08:53:10,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:53:10,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371424741] [2023-02-18 08:53:10,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:53:10,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:53:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:10,134 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:53:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:10,144 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:53:10,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:10,151 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2023-02-18 08:53:10,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:53:10,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516214232] [2023-02-18 08:53:10,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:53:10,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:53:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:10,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:53:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:10,186 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:53:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:10,230 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:53:10,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:10,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.02 08:53:10 BoogieIcfgContainer [2023-02-18 08:53:10,250 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-18 08:53:10,251 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 08:53:10,251 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 08:53:10,251 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 08:53:10,252 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:53:09" (3/4) ... [2023-02-18 08:53:10,253 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-02-18 08:53:10,274 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 08:53:10,275 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 08:53:10,276 INFO L158 Benchmark]: Toolchain (without parser) took 1017.01ms. Allocated memory is still 165.7MB. Free memory was 126.8MB in the beginning and 82.7MB in the end (delta: 44.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-02-18 08:53:10,276 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 165.7MB. Free memory was 140.4MB in the beginning and 140.2MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:53:10,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.04ms. Allocated memory is still 165.7MB. Free memory was 126.8MB in the beginning and 116.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 08:53:10,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.96ms. Allocated memory is still 165.7MB. Free memory was 116.9MB in the beginning and 115.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:53:10,278 INFO L158 Benchmark]: Boogie Preprocessor took 44.80ms. Allocated memory is still 165.7MB. Free memory was 115.7MB in the beginning and 114.8MB in the end (delta: 969.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 08:53:10,278 INFO L158 Benchmark]: RCFGBuilder took 241.64ms. Allocated memory is still 165.7MB. Free memory was 114.2MB in the beginning and 105.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 08:53:10,279 INFO L158 Benchmark]: BuchiAutomizer took 349.43ms. Allocated memory is still 165.7MB. Free memory was 105.3MB in the beginning and 84.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-02-18 08:53:10,279 INFO L158 Benchmark]: Witness Printer took 23.85ms. Allocated memory is still 165.7MB. Free memory was 84.3MB in the beginning and 82.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 08:53:10,282 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 165.7MB. Free memory was 140.4MB in the beginning and 140.2MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.04ms. Allocated memory is still 165.7MB. Free memory was 126.8MB in the beginning and 116.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.96ms. Allocated memory is still 165.7MB. Free memory was 116.9MB in the beginning and 115.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.80ms. Allocated memory is still 165.7MB. Free memory was 115.7MB in the beginning and 114.8MB in the end (delta: 969.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 241.64ms. Allocated memory is still 165.7MB. Free memory was 114.2MB in the beginning and 105.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 349.43ms. Allocated memory is still 165.7MB. Free memory was 105.3MB in the beginning and 84.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 23.85ms. Allocated memory is still 165.7MB. Free memory was 84.3MB in the beginning and 82.7MB in the end (delta: 1.6MB). 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 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. 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 - LassoShapedNonTerminationArgument [Line: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L9] int a[1048]; [L11] a[2] = __VERIFIER_nondet_int() Loop: [L13] EXPR a[2] [L13] COND TRUE a[2] >= 0 [L14] EXPR a[2] [L14] a[2] = a[2] - 1 [L15] a[1+1] = __VERIFIER_nondet_int() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L9] int a[1048]; [L11] a[2] = __VERIFIER_nondet_int() Loop: [L13] EXPR a[2] [L13] COND TRUE a[2] >= 0 [L14] EXPR a[2] [L14] a[2] = a[2] - 1 [L15] a[1+1] = __VERIFIER_nondet_int() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-02-18 08:53:10,301 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)