./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 20ed64ec 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 072df04afae5ae28487e0b8208c52f13961dea34 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Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 13:54:45,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 13:54:45,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 13:54:45,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 13:54:45,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 13:54:45,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 13:54:45,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 13:54:45,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 13:54:45,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 13:54:45,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 13:54:45,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 13:54:45,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 13:54:45,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 13:54:45,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 13:54:45,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 13:54:45,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 13:54:45,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 13:54:45,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 13:54:45,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 13:54:45,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 13:54:45,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 13:54:45,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 13:54:45,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 13:54:45,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 13:54:45,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 13:54:45,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 13:54:45,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 13:54:45,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 13:54:45,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 13:54:45,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 13:54:45,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 13:54:45,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 13:54:45,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 13:54:45,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 13:54:45,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 13:54:45,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 13:54:45,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 13:54:45,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 13:54:45,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 13:54:45,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 13:54:45,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 13:54:45,826 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-27 13:54:45,842 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 13:54:45,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 13:54:45,842 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 13:54:45,842 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 13:54:45,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 13:54:45,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 13:54:45,843 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 13:54:45,844 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 13:54:45,844 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 13:54:45,844 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 13:54:45,844 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 13:54:45,844 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 13:54:45,844 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 13:54:45,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 13:54:45,845 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 13:54:45,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 13:54:45,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 13:54:45,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 13:54:45,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 13:54:45,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 13:54:45,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 13:54:45,846 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 13:54:45,846 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 13:54:45,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 13:54:45,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 13:54:45,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 13:54:45,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 13:54:45,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 13:54:45,847 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 13:54:45,847 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 13:54:45,847 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 072df04afae5ae28487e0b8208c52f13961dea34 [2021-08-27 13:54:46,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 13:54:46,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 13:54:46,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 13:54:46,088 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 13:54:46,088 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 13:54:46,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2021-08-27 13:54:46,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00ed449a5/52b0ecdb1a2e4e2d858463e623c478a9/FLAG5dfca4a18 [2021-08-27 13:54:46,451 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 13:54:46,451 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2021-08-27 13:54:46,456 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00ed449a5/52b0ecdb1a2e4e2d858463e623c478a9/FLAG5dfca4a18 [2021-08-27 13:54:46,876 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00ed449a5/52b0ecdb1a2e4e2d858463e623c478a9 [2021-08-27 13:54:46,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 13:54:46,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 13:54:46,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 13:54:46,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 13:54:46,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 13:54:46,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:46,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cb30c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46, skipping insertion in model container [2021-08-27 13:54:46,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:46,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 13:54:46,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 13:54:46,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 13:54:46,977 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 13:54:46,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 13:54:46,997 INFO L208 MainTranslator]: Completed translation [2021-08-27 13:54:46,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46 WrapperNode [2021-08-27 13:54:46,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 13:54:46,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 13:54:46,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 13:54:46,999 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 13:54:47,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:47,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:47,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 13:54:47,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 13:54:47,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 13:54:47,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 13:54:47,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:47,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:47,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:47,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:47,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:47,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:47,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:47,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 13:54:47,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 13:54:47,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 13:54:47,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 13:54:47,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:47,090 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:47,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:47,130 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) [2021-08-27 13:54:47,215 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 [2021-08-27 13:54:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 13:54:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 13:54:47,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 13:54:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-27 13:54:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 13:54:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 13:54:47,390 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 13:54:47,391 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-27 13:54:47,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:54:47 BoogieIcfgContainer [2021-08-27 13:54:47,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 13:54:47,393 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 13:54:47,393 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 13:54:47,395 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 13:54:47,395 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:54:47,396 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 01:54:46" (1/3) ... [2021-08-27 13:54:47,397 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29feacf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 01:54:47, skipping insertion in model container [2021-08-27 13:54:47,397 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:54:47,397 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (2/3) ... [2021-08-27 13:54:47,397 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29feacf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 01:54:47, skipping insertion in model container [2021-08-27 13:54:47,397 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:54:47,397 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:54:47" (3/3) ... [2021-08-27 13:54:47,398 INFO L389 chiAutomizerObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2021-08-27 13:54:47,440 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 13:54:47,440 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 13:54:47,440 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 13:54:47,441 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 13:54:47,441 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 13:54:47,441 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 13:54:47,441 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 13:54:47,441 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 13:54:47,450 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) [2021-08-27 13:54:47,461 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 13:54:47,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:54:47,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:54:47,465 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 13:54:47,465 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 13:54:47,465 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 13:54:47,466 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) [2021-08-27 13:54:47,466 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 13:54:47,466 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:54:47,467 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:54:47,467 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 13:54:47,467 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 13:54:47,471 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet0, main_#t~mem2, main_#t~nondet3, main_#t~mem1, main_~#a~0.base, main_~#a~0.offset;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4192);call write~int(main_#t~nondet0, main_~#a~0.base, 8 + main_~#a~0.offset, 4);havoc main_#t~nondet0; 7#L13-3true [2021-08-27 13:54:47,472 INFO L793 eck$LassoCheckResult]: Loop: 7#L13-3true call main_#t~mem1 := read~int(main_~#a~0.base, 8 + main_~#a~0.offset, 4); 4#L13-1true assume !!(main_#t~mem1 >= 0);havoc main_#t~mem1;call main_#t~mem2 := read~int(main_~#a~0.base, 8 + main_~#a~0.offset, 4);call write~int(main_#t~mem2 - 1, main_~#a~0.base, 8 + main_~#a~0.offset, 4);havoc main_#t~mem2;call write~int(main_#t~nondet3, main_~#a~0.base, 8 + main_~#a~0.offset, 4);havoc main_#t~nondet3; 7#L13-3true [2021-08-27 13:54:47,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:47,477 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-08-27 13:54:47,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:47,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524626756] [2021-08-27 13:54:47,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:47,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:47,554 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:47,585 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:47,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:47,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2021-08-27 13:54:47,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:47,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727093034] [2021-08-27 13:54:47,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:47,589 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:47,603 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:47,615 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:47,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:47,619 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2021-08-27 13:54:47,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:47,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687189144] [2021-08-27 13:54:47,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:47,619 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:47,628 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:47,656 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:47,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 01:54:47 BoogieIcfgContainer [2021-08-27 13:54:47,965 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 13:54:47,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 13:54:47,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 13:54:47,966 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 13:54:47,966 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:54:47" (3/4) ... [2021-08-27 13:54:47,968 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 13:54:48,000 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 13:54:48,000 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 13:54:48,001 INFO L168 Benchmark]: Toolchain (without parser) took 1121.77 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 36.1 MB in the beginning and 36.6 MB in the end (delta: -539.5 kB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2021-08-27 13:54:48,002 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 44.0 MB. Free memory was 26.5 MB in the beginning and 26.5 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 13:54:48,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 118.05 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 27.2 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 13:54:48,003 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.61 ms. Allocated memory is still 54.5 MB. Free memory was 27.2 MB in the beginning and 25.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 13:54:48,003 INFO L168 Benchmark]: Boogie Preprocessor took 63.33 ms. Allocated memory is still 54.5 MB. Free memory was 25.9 MB in the beginning and 38.9 MB in the end (delta: -13.1 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2021-08-27 13:54:48,004 INFO L168 Benchmark]: RCFGBuilder took 310.82 ms. Allocated memory is still 54.5 MB. Free memory was 38.9 MB in the beginning and 28.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 13:54:48,004 INFO L168 Benchmark]: BuchiAutomizer took 572.27 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 28.6 MB in the beginning and 38.1 MB in the end (delta: -9.5 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. [2021-08-27 13:54:48,005 INFO L168 Benchmark]: Witness Printer took 34.57 ms. Allocated memory is still 67.1 MB. Free memory was 38.1 MB in the beginning and 36.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 13:54:48,008 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 44.0 MB. Free memory was 26.5 MB in the beginning and 26.5 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 118.05 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 27.2 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 18.61 ms. Allocated memory is still 54.5 MB. Free memory was 27.2 MB in the beginning and 25.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.33 ms. Allocated memory is still 54.5 MB. Free memory was 25.9 MB in the beginning and 38.9 MB in the end (delta: -13.1 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 310.82 ms. Allocated memory is still 54.5 MB. Free memory was 38.9 MB in the beginning and 28.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 572.27 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 28.6 MB in the beginning and 38.1 MB in the end (delta: -9.5 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. * Witness Printer took 34.57 ms. Allocated memory is still 67.1 MB. Free memory was 38.1 MB in the beginning and 36.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 0.5s 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: No data available 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 - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 13]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@178f46a1=867, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@73c8a628=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@89a91de=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16485b4=0, \result=0, a=0, NULL=1, a=2} - 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! [2021-08-27 13:54:48,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...