./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/java_Continue1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 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/java_Continue1.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 a40571433f24a7b15b183b3095b5da43803830f9d641dfe0ea4f99a62ff28fda --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 19:49:09,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 19:49:09,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 19:49:09,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 19:49:09,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 19:49:09,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 19:49:09,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 19:49:09,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 19:49:09,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 19:49:09,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 19:49:09,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 19:49:09,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 19:49:09,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 19:49:09,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 19:49:09,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 19:49:09,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 19:49:09,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 19:49:09,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 19:49:09,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 19:49:09,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 19:49:09,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 19:49:09,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 19:49:09,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 19:49:09,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 19:49:09,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 19:49:09,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 19:49:09,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 19:49:09,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 19:49:09,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 19:49:09,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 19:49:09,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 19:49:09,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 19:49:09,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 19:49:09,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 19:49:09,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 19:49:09,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 19:49:09,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 19:49:09,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 19:49:09,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 19:49:09,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 19:49:09,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 19:49:09,594 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-22 19:49:09,616 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 19:49:09,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 19:49:09,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 19:49:09,618 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 19:49:09,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 19:49:09,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 19:49:09,619 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 19:49:09,619 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 19:49:09,619 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 19:49:09,619 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 19:49:09,620 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 19:49:09,620 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 19:49:09,621 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 19:49:09,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 19:49:09,621 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 19:49:09,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 19:49:09,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 19:49:09,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 19:49:09,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 19:49:09,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 19:49:09,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 19:49:09,622 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 19:49:09,622 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 19:49:09,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 19:49:09,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 19:49:09,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 19:49:09,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 19:49:09,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 19:49:09,623 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 19:49:09,624 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 19:49:09,624 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a40571433f24a7b15b183b3095b5da43803830f9d641dfe0ea4f99a62ff28fda [2021-12-22 19:49:09,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 19:49:09,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 19:49:09,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 19:49:09,830 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 19:49:09,830 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 19:49:09,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/java_Continue1.c [2021-12-22 19:49:09,870 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a548a789/109f8fd6614746f392571fe8822082b1/FLAGf09ccf5a0 [2021-12-22 19:49:10,192 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 19:49:10,192 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/java_Continue1.c [2021-12-22 19:49:10,199 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a548a789/109f8fd6614746f392571fe8822082b1/FLAGf09ccf5a0 [2021-12-22 19:49:10,656 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a548a789/109f8fd6614746f392571fe8822082b1 [2021-12-22 19:49:10,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 19:49:10,662 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 19:49:10,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 19:49:10,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 19:49:10,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 19:49:10,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:49:10" (1/1) ... [2021-12-22 19:49:10,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d7356c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:10, skipping insertion in model container [2021-12-22 19:49:10,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:49:10" (1/1) ... [2021-12-22 19:49:10,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 19:49:10,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 19:49:10,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 19:49:10,771 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 19:49:10,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 19:49:10,791 INFO L208 MainTranslator]: Completed translation [2021-12-22 19:49:10,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:10 WrapperNode [2021-12-22 19:49:10,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 19:49:10,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 19:49:10,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 19:49:10,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 19:49:10,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:10" (1/1) ... [2021-12-22 19:49:10,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:10" (1/1) ... [2021-12-22 19:49:10,839 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2021-12-22 19:49:10,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 19:49:10,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 19:49:10,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 19:49:10,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 19:49:10,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:10" (1/1) ... [2021-12-22 19:49:10,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:10" (1/1) ... [2021-12-22 19:49:10,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:10" (1/1) ... [2021-12-22 19:49:10,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:10" (1/1) ... [2021-12-22 19:49:10,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:10" (1/1) ... [2021-12-22 19:49:10,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:10" (1/1) ... [2021-12-22 19:49:10,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:10" (1/1) ... [2021-12-22 19:49:10,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 19:49:10,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 19:49:10,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 19:49:10,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 19:49:10,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:10" (1/1) ... [2021-12-22 19:49:10,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:10,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:10,889 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) [2021-12-22 19:49:10,907 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 [2021-12-22 19:49:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 19:49:10,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 19:49:10,966 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 19:49:10,967 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 19:49:11,008 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 19:49:11,012 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 19:49:11,012 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 19:49:11,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:49:11 BoogieIcfgContainer [2021-12-22 19:49:11,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 19:49:11,014 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 19:49:11,014 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 19:49:11,016 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 19:49:11,017 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 19:49:11,017 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 07:49:10" (1/3) ... [2021-12-22 19:49:11,018 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@372a1a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 07:49:11, skipping insertion in model container [2021-12-22 19:49:11,018 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 19:49:11,018 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:10" (2/3) ... [2021-12-22 19:49:11,018 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@372a1a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 07:49:11, skipping insertion in model container [2021-12-22 19:49:11,019 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 19:49:11,019 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:49:11" (3/3) ... [2021-12-22 19:49:11,020 INFO L388 chiAutomizerObserver]: Analyzing ICFG java_Continue1.c [2021-12-22 19:49:11,047 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 19:49:11,048 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 19:49:11,048 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 19:49:11,048 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 19:49:11,048 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 19:49:11,048 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 19:49:11,048 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 19:49:11,048 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 19:49:11,057 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2021-12-22 19:49:11,068 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-22 19:49:11,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:49:11,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:49:11,083 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-22 19:49:11,083 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-22 19:49:11,083 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 19:49:11,084 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2021-12-22 19:49:11,085 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-22 19:49:11,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:49:11,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:49:11,085 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-22 19:49:11,086 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-22 19:49:11,090 INFO L791 eck$LassoCheckResult]: Stem: 7#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_~i~0#1, main_~c~0#1;havoc main_~i~0#1;havoc main_~c~0#1;main_~i~0#1 := 0;main_~c~0#1 := 0; 3#L12-2true [2021-12-22 19:49:11,090 INFO L793 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!(main_~i~0#1 < 20);main_~i~0#1 := 1 + main_~i~0#1; 9#L12true assume !(main_~i~0#1 <= 10);main_~c~0#1 := 1 + main_~c~0#1; 3#L12-2true [2021-12-22 19:49:11,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:49:11,096 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-22 19:49:11,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:49:11,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155145788] [2021-12-22 19:49:11,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:49:11,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:49:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:49:11,165 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:49:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:49:11,184 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:49:11,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:49:11,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2021-12-22 19:49:11,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:49:11,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366072832] [2021-12-22 19:49:11,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:49:11,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:49:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:49:11,197 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:49:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:49:11,201 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:49:11,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:49:11,206 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2021-12-22 19:49:11,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:49:11,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813044843] [2021-12-22 19:49:11,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:49:11,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:49:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:49:11,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:49:11,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:49:11,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813044843] [2021-12-22 19:49:11,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813044843] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 19:49:11,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 19:49:11,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 19:49:11,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253215230] [2021-12-22 19:49:11,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 19:49:11,304 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 19:49:11,305 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 19:49:11,305 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 19:49:11,305 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 19:49:11,305 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-22 19:49:11,306 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:11,306 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 19:49:11,306 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 19:49:11,306 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Continue1.c_Iteration1_Loop [2021-12-22 19:49:11,306 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 19:49:11,306 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 19:49:11,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:11,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:11,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:11,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:11,408 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 19:49:11,417 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-22 19:49:11,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:11,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:11,436 INFO L229 MonitoredProcess]: Starting monitored process 2 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) [2021-12-22 19:49:11,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-22 19:49:11,458 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 19:49:11,458 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:11,475 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 19:49:11,475 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-22 19:49:11,491 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-12-22 19:49:11,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:11,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:11,492 INFO L229 MonitoredProcess]: Starting monitored process 3 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) [2021-12-22 19:49:11,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-22 19:49:11,494 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 19:49:11,494 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:11,516 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 19:49:11,516 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-22 19:49:11,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-22 19:49:11,531 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:11,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:11,532 INFO L229 MonitoredProcess]: Starting monitored process 4 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) [2021-12-22 19:49:11,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-22 19:49:11,535 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 19:49:11,535 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:11,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-22 19:49:11,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:11,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:11,568 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2021-12-22 19:49:11,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-22 19:49:11,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-22 19:49:11,571 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:11,598 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-22 19:49:11,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-22 19:49:11,601 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 19:49:11,601 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 19:49:11,601 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 19:49:11,601 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 19:49:11,602 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 19:49:11,602 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:11,602 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 19:49:11,602 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 19:49:11,602 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Continue1.c_Iteration1_Loop [2021-12-22 19:49:11,602 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 19:49:11,602 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 19:49:11,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:11,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:11,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:11,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:11,665 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 19:49:11,668 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-22 19:49:11,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:11,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:11,670 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2021-12-22 19:49:11,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-22 19:49:11,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:49:11,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:49:11,681 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:49:11,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:49:11,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:49:11,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:49:11,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:49:11,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:49:11,697 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-22 19:49:11,700 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-22 19:49:11,701 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-22 19:49:11,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:11,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:11,703 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2021-12-22 19:49:11,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-22 19:49:11,741 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-22 19:49:11,741 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-22 19:49:11,741 INFO L513 LassoAnalysis]: Proved termination. [2021-12-22 19:49:11,742 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 39 Supporting invariants [] [2021-12-22 19:49:11,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-22 19:49:11,762 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-22 19:49:11,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:49:11,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:49:11,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 19:49:11,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:49:11,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:49:11,812 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-22 19:49:11,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:49:11,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:49:11,882 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-22 19:49:11,883 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-12-22 19:49:11,910 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Result 19 states and 24 transitions. Complement of second has 5 states. [2021-12-22 19:49:11,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-22 19:49:11,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-12-22 19:49:11,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-12-22 19:49:11,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2021-12-22 19:49:11,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:49:11,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-22 19:49:11,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:49:11,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2021-12-22 19:49:11,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:49:11,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 24 transitions. [2021-12-22 19:49:11,922 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-22 19:49:11,924 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2021-12-22 19:49:11,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-22 19:49:11,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-22 19:49:11,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-22 19:49:11,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 19:49:11,926 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 19:49:11,926 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 19:49:11,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:49:11,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 19:49:11,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 19:49:11,930 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2021-12-22 19:49:11,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:49:11,932 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-12-22 19:49:11,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-22 19:49:11,932 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-12-22 19:49:11,933 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-22 19:49:11,933 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-12-22 19:49:11,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-22 19:49:11,933 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-22 19:49:11,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-22 19:49:11,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 19:49:11,933 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 19:49:11,933 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 19:49:11,934 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 19:49:11,934 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-22 19:49:11,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-22 19:49:11,934 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-22 19:49:11,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-22 19:49:11,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.12 07:49:11 BoogieIcfgContainer [2021-12-22 19:49:11,939 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-22 19:49:11,940 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 19:49:11,940 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 19:49:11,941 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 19:49:11,941 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:49:11" (3/4) ... [2021-12-22 19:49:11,943 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-22 19:49:11,944 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 19:49:11,945 INFO L158 Benchmark]: Toolchain (without parser) took 1281.87ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 72.8MB in the beginning and 85.3MB in the end (delta: -12.5MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2021-12-22 19:49:11,946 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory is still 58.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 19:49:11,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 128.10ms. Allocated memory is still 100.7MB. Free memory was 72.6MB in the beginning and 79.7MB in the end (delta: -7.1MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-12-22 19:49:11,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.79ms. Allocated memory is still 100.7MB. Free memory was 79.7MB in the beginning and 78.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 19:49:11,951 INFO L158 Benchmark]: Boogie Preprocessor took 11.54ms. Allocated memory is still 100.7MB. Free memory was 78.4MB in the beginning and 77.7MB in the end (delta: 715.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 19:49:11,951 INFO L158 Benchmark]: RCFGBuilder took 161.87ms. Allocated memory is still 100.7MB. Free memory was 77.7MB in the beginning and 70.0MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 19:49:11,952 INFO L158 Benchmark]: BuchiAutomizer took 925.40ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 69.7MB in the beginning and 85.6MB in the end (delta: -16.0MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2021-12-22 19:49:11,952 INFO L158 Benchmark]: Witness Printer took 3.40ms. Allocated memory is still 130.0MB. Free memory was 85.6MB in the beginning and 85.3MB in the end (delta: 311.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 19:49:11,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory is still 58.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 128.10ms. Allocated memory is still 100.7MB. Free memory was 72.6MB in the beginning and 79.7MB in the end (delta: -7.1MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.79ms. Allocated memory is still 100.7MB. Free memory was 79.7MB in the beginning and 78.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.54ms. Allocated memory is still 100.7MB. Free memory was 78.4MB in the beginning and 77.7MB in the end (delta: 715.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 161.87ms. Allocated memory is still 100.7MB. Free memory was 77.7MB in the beginning and 70.0MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 925.40ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 69.7MB in the beginning and 85.6MB in the end (delta: -16.0MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Witness Printer took 3.40ms. Allocated memory is still 130.0MB. Free memory was 85.6MB in the beginning and 85.3MB in the end (delta: 311.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 39 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. 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 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 5 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax163 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq142 hnf94 smp100 dnf100 smp100 tf110 neg95 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 72ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-22 19:49:11,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-22 19:49:12,187 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 Result: TRUE