./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/ComplInterv2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/ComplInterv2.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 a4e4c55c78b95f44c6095497bf409656f44c1a6a97ae10e1462b294c9f7e80ca --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 21:57:15,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 21:57:15,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 21:57:15,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 21:57:15,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 21:57:15,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 21:57:15,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 21:57:15,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 21:57:15,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 21:57:15,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 21:57:15,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 21:57:15,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 21:57:15,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 21:57:15,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 21:57:15,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 21:57:15,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 21:57:15,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 21:57:15,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 21:57:15,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 21:57:15,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 21:57:15,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 21:57:15,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 21:57:15,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 21:57:15,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 21:57:15,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 21:57:15,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 21:57:15,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 21:57:15,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 21:57:15,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 21:57:15,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 21:57:15,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 21:57:15,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 21:57:15,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 21:57:15,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 21:57:15,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 21:57:15,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 21:57:15,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 21:57:15,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 21:57:15,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 21:57:15,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 21:57:15,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 21:57:15,802 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-21 21:57:15,825 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 21:57:15,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 21:57:15,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 21:57:15,826 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 21:57:15,827 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 21:57:15,827 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 21:57:15,827 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 21:57:15,827 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 21:57:15,828 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 21:57:15,828 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 21:57:15,828 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 21:57:15,828 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 21:57:15,829 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 21:57:15,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 21:57:15,829 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 21:57:15,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 21:57:15,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 21:57:15,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 21:57:15,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 21:57:15,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 21:57:15,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 21:57:15,830 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 21:57:15,830 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 21:57:15,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 21:57:15,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 21:57:15,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 21:57:15,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 21:57:15,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 21:57:15,831 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 21:57:15,832 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 21:57:15,832 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4e4c55c78b95f44c6095497bf409656f44c1a6a97ae10e1462b294c9f7e80ca [2021-12-21 21:57:16,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 21:57:16,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 21:57:16,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 21:57:16,030 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 21:57:16,030 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 21:57:16,031 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/ComplInterv2.c [2021-12-21 21:57:16,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c68e14529/968d26e236d745f8858611e6a251777f/FLAGab0ac8ccb [2021-12-21 21:57:16,388 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 21:57:16,388 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/ComplInterv2.c [2021-12-21 21:57:16,393 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c68e14529/968d26e236d745f8858611e6a251777f/FLAGab0ac8ccb [2021-12-21 21:57:16,828 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c68e14529/968d26e236d745f8858611e6a251777f [2021-12-21 21:57:16,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 21:57:16,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 21:57:16,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 21:57:16,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 21:57:16,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 21:57:16,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:57:16" (1/1) ... [2021-12-21 21:57:16,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d2cd77b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:57:16, skipping insertion in model container [2021-12-21 21:57:16,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:57:16" (1/1) ... [2021-12-21 21:57:16,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 21:57:16,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 21:57:16,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 21:57:16,957 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 21:57:16,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 21:57:16,975 INFO L208 MainTranslator]: Completed translation [2021-12-21 21:57:16,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:57:16 WrapperNode [2021-12-21 21:57:16,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 21:57:16,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 21:57:16,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 21:57:16,977 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 21:57:16,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:57:16" (1/1) ... [2021-12-21 21:57:16,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:57:16" (1/1) ... [2021-12-21 21:57:16,994 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2021-12-21 21:57:16,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 21:57:16,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 21:57:16,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 21:57:16,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 21:57:17,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:57:16" (1/1) ... [2021-12-21 21:57:17,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:57:16" (1/1) ... [2021-12-21 21:57:17,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:57:16" (1/1) ... [2021-12-21 21:57:17,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:57:16" (1/1) ... [2021-12-21 21:57:17,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:57:16" (1/1) ... [2021-12-21 21:57:17,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:57:16" (1/1) ... [2021-12-21 21:57:17,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:57:16" (1/1) ... [2021-12-21 21:57:17,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 21:57:17,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 21:57:17,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 21:57:17,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 21:57:17,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:57:16" (1/1) ... [2021-12-21 21:57:17,012 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:57:17,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:57:17,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:57:17,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-21 21:57:17,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 21:57:17,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 21:57:17,118 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 21:57:17,119 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 21:57:17,188 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 21:57:17,192 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 21:57:17,192 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 21:57:17,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:57:17 BoogieIcfgContainer [2021-12-21 21:57:17,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 21:57:17,194 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 21:57:17,195 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 21:57:17,196 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 21:57:17,197 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 21:57:17,197 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 09:57:16" (1/3) ... [2021-12-21 21:57:17,198 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e9bd709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 09:57:17, skipping insertion in model container [2021-12-21 21:57:17,198 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 21:57:17,198 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:57:16" (2/3) ... [2021-12-21 21:57:17,198 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e9bd709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 09:57:17, skipping insertion in model container [2021-12-21 21:57:17,198 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 21:57:17,198 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:57:17" (3/3) ... [2021-12-21 21:57:17,200 INFO L388 chiAutomizerObserver]: Analyzing ICFG ComplInterv2.c [2021-12-21 21:57:17,238 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 21:57:17,238 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 21:57:17,238 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 21:57:17,239 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 21:57:17,239 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 21:57:17,239 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 21:57:17,239 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 21:57:17,239 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 21:57:17,249 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:57:17,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-21 21:57:17,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 21:57:17,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 21:57:17,267 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-21 21:57:17,267 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 21:57:17,267 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 21:57:17,268 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 21:57:17,269 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-21 21:57:17,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 21:57:17,269 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 21:57:17,269 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-21 21:57:17,269 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 21:57:17,274 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 6#L10-1true [2021-12-21 21:57:17,274 INFO L793 eck$LassoCheckResult]: Loop: 6#L10-1true assume !!(0 != main_~i~0#1); 5#L10true assume !(main_~i~0#1 > -5 && main_~i~0#1 < 5); 6#L10-1true [2021-12-21 21:57:17,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:57:17,278 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-21 21:57:17,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:57:17,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108344316] [2021-12-21 21:57:17,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:57:17,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:57:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:57:17,337 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:57:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:57:17,363 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:57:17,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:57:17,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1330, now seen corresponding path program 1 times [2021-12-21 21:57:17,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:57:17,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973842945] [2021-12-21 21:57:17,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:57:17,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:57:17,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:57:17,375 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:57:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:57:17,387 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:57:17,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:57:17,388 INFO L85 PathProgramCache]: Analyzing trace with hash 925812, now seen corresponding path program 1 times [2021-12-21 21:57:17,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:57:17,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246030283] [2021-12-21 21:57:17,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:57:17,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:57:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:57:17,397 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:57:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:57:17,403 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:57:17,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 09:57:17 BoogieIcfgContainer [2021-12-21 21:57:17,515 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 21:57:17,516 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 21:57:17,516 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 21:57:17,516 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 21:57:17,516 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:57:17" (3/4) ... [2021-12-21 21:57:17,518 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-21 21:57:17,541 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 21:57:17,541 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 21:57:17,542 INFO L158 Benchmark]: Toolchain (without parser) took 710.58ms. Allocated memory is still 100.7MB. Free memory was 73.9MB in the beginning and 51.7MB in the end (delta: 22.2MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2021-12-21 21:57:17,543 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory is still 57.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 21:57:17,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 138.86ms. Allocated memory is still 100.7MB. Free memory was 73.7MB in the beginning and 79.0MB in the end (delta: -5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 21:57:17,547 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.27ms. Allocated memory is still 100.7MB. Free memory was 79.0MB in the beginning and 77.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 21:57:17,549 INFO L158 Benchmark]: Boogie Preprocessor took 10.53ms. Allocated memory is still 100.7MB. Free memory was 77.8MB in the beginning and 76.9MB in the end (delta: 985.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 21:57:17,550 INFO L158 Benchmark]: RCFGBuilder took 187.19ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 68.9MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 21:57:17,551 INFO L158 Benchmark]: BuchiAutomizer took 320.62ms. Allocated memory is still 100.7MB. Free memory was 68.9MB in the beginning and 53.4MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-21 21:57:17,551 INFO L158 Benchmark]: Witness Printer took 25.77ms. Allocated memory is still 100.7MB. Free memory was 53.4MB in the beginning and 51.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 21:57:17,557 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory is still 57.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 138.86ms. Allocated memory is still 100.7MB. Free memory was 73.7MB in the beginning and 79.0MB in the end (delta: -5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.27ms. Allocated memory is still 100.7MB. Free memory was 79.0MB in the beginning and 77.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 10.53ms. Allocated memory is still 100.7MB. Free memory was 77.8MB in the beginning and 76.9MB in the end (delta: 985.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 187.19ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 68.9MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 320.62ms. Allocated memory is still 100.7MB. Free memory was 68.9MB in the beginning and 53.4MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 25.77ms. Allocated memory is still 100.7MB. Free memory was 53.4MB in the beginning and 51.7MB in the end (delta: 1.7MB). 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 - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {i=-5, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@185092b5=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() Loop: [L9] COND TRUE i != 0 [L10] COND FALSE !(i > -5 && i < 5) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-21 21:57:17,589 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... --- 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)