./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.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 033772d605bbfacd7bdbacf0756e3bc9cfb2f8cbffe91002f61ae4b41e344064 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 03:24:55,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 03:24:55,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 03:24:55,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 03:24:55,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 03:24:55,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 03:24:55,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 03:24:55,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 03:24:55,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 03:24:55,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 03:24:55,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 03:24:55,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 03:24:55,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 03:24:55,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 03:24:55,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 03:24:55,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 03:24:55,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 03:24:55,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 03:24:55,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 03:24:55,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 03:24:55,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 03:24:55,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 03:24:55,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 03:24:55,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 03:24:55,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 03:24:55,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 03:24:55,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 03:24:55,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 03:24:55,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 03:24:55,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 03:24:55,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 03:24:55,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 03:24:55,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 03:24:55,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 03:24:55,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 03:24:55,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 03:24:55,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 03:24:55,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 03:24:55,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 03:24:55,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 03:24:55,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 03:24:55,535 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-02-21 03:24:55,576 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 03:24:55,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 03:24:55,577 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 03:24:55,577 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 03:24:55,578 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 03:24:55,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 03:24:55,584 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 03:24:55,585 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 03:24:55,585 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 03:24:55,585 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 03:24:55,586 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 03:24:55,586 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 03:24:55,586 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 03:24:55,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 03:24:55,587 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 03:24:55,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 03:24:55,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 03:24:55,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 03:24:55,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 03:24:55,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 03:24:55,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 03:24:55,588 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 03:24:55,588 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 03:24:55,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 03:24:55,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 03:24:55,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 03:24:55,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 03:24:55,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 03:24:55,590 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 03:24:55,590 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 033772d605bbfacd7bdbacf0756e3bc9cfb2f8cbffe91002f61ae4b41e344064 [2022-02-21 03:24:55,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 03:24:55,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 03:24:55,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 03:24:55,887 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 03:24:55,891 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 03:24:55,893 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c [2022-02-21 03:24:55,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a5cfd5c5/3bebdabd0c514edba6485f30e21837ad/FLAG580a9b6ca [2022-02-21 03:24:56,427 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 03:24:56,428 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c [2022-02-21 03:24:56,436 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a5cfd5c5/3bebdabd0c514edba6485f30e21837ad/FLAG580a9b6ca [2022-02-21 03:24:56,932 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a5cfd5c5/3bebdabd0c514edba6485f30e21837ad [2022-02-21 03:24:56,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 03:24:56,937 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 03:24:56,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 03:24:56,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 03:24:56,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 03:24:56,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:24:56" (1/1) ... [2022-02-21 03:24:56,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29f0e4ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:56, skipping insertion in model container [2022-02-21 03:24:56,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:24:56" (1/1) ... [2022-02-21 03:24:56,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 03:24:56,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 03:24:57,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:24:57,082 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 03:24:57,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:24:57,117 INFO L208 MainTranslator]: Completed translation [2022-02-21 03:24:57,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:57 WrapperNode [2022-02-21 03:24:57,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 03:24:57,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 03:24:57,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 03:24:57,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 03:24:57,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:57" (1/1) ... [2022-02-21 03:24:57,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:57" (1/1) ... [2022-02-21 03:24:57,148 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2022-02-21 03:24:57,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 03:24:57,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 03:24:57,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 03:24:57,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 03:24:57,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:57" (1/1) ... [2022-02-21 03:24:57,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:57" (1/1) ... [2022-02-21 03:24:57,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:57" (1/1) ... [2022-02-21 03:24:57,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:57" (1/1) ... [2022-02-21 03:24:57,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:57" (1/1) ... [2022-02-21 03:24:57,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:57" (1/1) ... [2022-02-21 03:24:57,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:57" (1/1) ... [2022-02-21 03:24:57,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 03:24:57,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 03:24:57,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 03:24:57,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 03:24:57,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:57" (1/1) ... [2022-02-21 03:24:57,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:57,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:57,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:24:57,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 03:24:57,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 03:24:57,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 03:24:57,295 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 03:24:57,297 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 03:24:57,368 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 03:24:57,377 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 03:24:57,377 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-21 03:24:57,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:24:57 BoogieIcfgContainer [2022-02-21 03:24:57,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 03:24:57,381 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 03:24:57,382 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 03:24:57,385 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 03:24:57,386 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:24:57,386 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 03:24:56" (1/3) ... [2022-02-21 03:24:57,387 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33a4c3c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:24:57, skipping insertion in model container [2022-02-21 03:24:57,388 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:24:57,388 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:57" (2/3) ... [2022-02-21 03:24:57,388 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33a4c3c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:24:57, skipping insertion in model container [2022-02-21 03:24:57,388 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:24:57,388 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:24:57" (3/3) ... [2022-02-21 03:24:57,389 INFO L388 chiAutomizerObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c [2022-02-21 03:24:57,448 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 03:24:57,448 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 03:24:57,448 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 03:24:57,448 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 03:24:57,448 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 03:24:57,448 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 03:24:57,449 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 03:24:57,449 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 03:24:57,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:24:57,490 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-02-21 03:24:57,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:24:57,491 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:24:57,495 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2022-02-21 03:24:57,495 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2022-02-21 03:24:57,495 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 03:24:57,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:24:57,499 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-02-21 03:24:57,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:24:57,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:24:57,500 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2022-02-21 03:24:57,500 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2022-02-21 03:24:57,506 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := 23; 4#L17-2true [2022-02-21 03:24:57,506 INFO L793 eck$LassoCheckResult]: Loop: 4#L17-2true assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~y~0#1;main_~y~0#1 := 1 + main_~y~0#1; 4#L17-2true [2022-02-21 03:24:57,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:24:57,512 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-02-21 03:24:57,521 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:24:57,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790835633] [2022-02-21 03:24:57,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:24:57,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:24:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:24:57,593 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:24:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:24:57,613 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:24:57,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:24:57,616 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2022-02-21 03:24:57,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:24:57,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955948663] [2022-02-21 03:24:57,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:24:57,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:24:57,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:24:57,641 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:24:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:24:57,657 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:24:57,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:24:57,659 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-02-21 03:24:57,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:24:57,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300609822] [2022-02-21 03:24:57,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:24:57,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:24:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:24:57,679 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:24:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:24:57,690 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:24:57,786 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:24:57,787 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:24:57,787 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:24:57,787 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:24:57,787 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-02-21 03:24:57,787 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:57,788 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:24:57,788 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:24:57,788 INFO L133 ssoRankerPreferences]: Filename of dumped script: HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c_Iteration1_Loop [2022-02-21 03:24:57,788 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:24:57,788 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:24:57,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:57,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:57,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:57,928 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:24:57,929 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-02-21 03:24:57,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:57,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:57,935 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) [2022-02-21 03:24:57,944 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:24:57,944 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:24:57,975 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 [2022-02-21 03:24:57,982 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:24:57,982 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: [] [2022-02-21 03:24:58,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-02-21 03:24:58,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:58,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:58,014 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) [2022-02-21 03:24:58,019 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 [2022-02-21 03:24:58,022 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:24:58,023 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:24:58,043 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:24:58,044 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: [] [2022-02-21 03:24:58,070 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 [2022-02-21 03:24:58,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:58,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:58,072 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) [2022-02-21 03:24:58,073 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 [2022-02-21 03:24:58,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:24:58,075 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:24:58,125 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 [2022-02-21 03:24:58,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:58,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:58,127 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) [2022-02-21 03:24:58,129 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 [2022-02-21 03:24:58,130 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-02-21 03:24:58,130 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:24:58,250 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-02-21 03:24:58,256 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 [2022-02-21 03:24:58,257 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:24:58,257 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:24:58,257 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:24:58,257 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:24:58,257 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-02-21 03:24:58,257 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:58,257 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:24:58,257 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:24:58,257 INFO L133 ssoRankerPreferences]: Filename of dumped script: HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c_Iteration1_Loop [2022-02-21 03:24:58,257 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:24:58,257 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:24:58,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:58,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:58,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:58,339 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:24:58,343 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-02-21 03:24:58,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:58,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:58,346 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) [2022-02-21 03:24:58,354 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 [2022-02-21 03:24:58,366 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 [2022-02-21 03:24:58,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:24:58,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:24:58,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:24:58,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:24:58,386 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-02-21 03:24:58,387 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-02-21 03:24:58,399 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:24:58,425 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 [2022-02-21 03:24:58,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:58,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:58,428 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) [2022-02-21 03:24:58,429 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 [2022-02-21 03:24:58,430 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 [2022-02-21 03:24:58,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:24:58,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:24:58,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:24:58,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:24:58,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-02-21 03:24:58,442 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-02-21 03:24:58,463 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:24:58,487 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 [2022-02-21 03:24:58,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:58,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:58,488 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:24:58,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-02-21 03:24:58,505 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 [2022-02-21 03:24:58,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:24:58,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:24:58,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:24:58,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:24:58,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:24:58,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:24:58,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:24:58,518 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:24:58,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-02-21 03:24:58,534 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-02-21 03:24:58,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:58,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:58,539 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:24:58,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-02-21 03:24:58,543 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 [2022-02-21 03:24:58,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:24:58,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:24:58,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:24:58,550 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-02-21 03:24:58,555 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2022-02-21 03:24:58,556 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2022-02-21 03:24:58,580 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:24:58,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-02-21 03:24:58,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:58,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:58,599 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:24:58,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-02-21 03:24:58,605 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 [2022-02-21 03:24:58,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:24:58,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:24:58,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:24:58,616 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-02-21 03:24:58,627 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2022-02-21 03:24:58,628 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2022-02-21 03:24:58,645 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:24:58,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-02-21 03:24:58,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:58,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:58,671 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:24:58,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-02-21 03:24:58,673 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 [2022-02-21 03:24:58,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:24:58,681 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:24:58,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:24:58,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:24:58,682 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-02-21 03:24:58,684 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-02-21 03:24:58,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:24:58,691 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-02-21 03:24:58,695 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-02-21 03:24:58,695 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-02-21 03:24:58,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:58,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:58,698 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:24:58,706 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-02-21 03:24:58,706 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-02-21 03:24:58,706 INFO L513 LassoAnalysis]: Proved termination. [2022-02-21 03:24:58,707 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~y~0#1 + 1 f1 = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2022-02-21 03:24:58,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-02-21 03:24:58,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-02-21 03:24:58,754 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-02-21 03:24:58,765 INFO L390 LassoCheck]: Loop: "assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~y~0#1;main_~y~0#1 := 1 + main_~y~0#1;" [2022-02-21 03:24:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:24:58,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:24:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:24:58,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-21 03:24:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:24:58,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:24:58,835 INFO L290 TraceCheckUtils]: 0: Hoare triple {17#unseeded} assume { :begin_inline_ULTIMATE.init } true; {17#unseeded} is VALID [2022-02-21 03:24:58,835 INFO L290 TraceCheckUtils]: 1: Hoare triple {17#unseeded} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := 23; {17#unseeded} is VALID [2022-02-21 03:24:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:24:58,842 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-21 03:24:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:24:58,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:24:58,850 INFO L290 TraceCheckUtils]: 0: Hoare triple {22#(and (>= oldRank1 (ite (> (+ (* (- 2) |ULTIMATE.start_main_~y~0#1|) 1) 0) (+ (* (- 2) |ULTIMATE.start_main_~y~0#1|) 1) (+ (* 2 |ULTIMATE.start_main_~x~0#1|) 1))) (>= oldRank0 (ite (> (+ (* (- 2) |ULTIMATE.start_main_~y~0#1|) 1) 0) 1 0)))} assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~y~0#1;main_~y~0#1 := 1 + main_~y~0#1; {31#(or unseeded (and (>= oldRank0 0) (> oldRank0 (ite (> (+ (* (- 2) |ULTIMATE.start_main_~y~0#1|) 1) 0) 1 0))) (and (> oldRank1 (ite (> (+ (* (- 2) |ULTIMATE.start_main_~y~0#1|) 1) 0) (+ (* (- 2) |ULTIMATE.start_main_~y~0#1|) 1) (+ (* 2 |ULTIMATE.start_main_~x~0#1|) 1))) (>= oldRank0 (ite (> (+ (* (- 2) |ULTIMATE.start_main_~y~0#1|) 1) 0) 1 0)) (>= oldRank1 0)))} is VALID [2022-02-21 03:24:58,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 03:24:58,870 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:24:58,877 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:24:58,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:24:58,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,884 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-02-21 03:24:58,885 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:24:58,953 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 16 states and 19 transitions. Complement of second has 5 states. [2022-02-21 03:24:58,954 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 [2022-02-21 03:24:58,954 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:24:58,954 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:24:58,956 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-02-21 03:24:58,956 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:24:58,956 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:24:58,956 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:24:58,965 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-02-21 03:24:58,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:24:58,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:24:58,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2022-02-21 03:24:58,967 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:24:58,967 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:24:58,969 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:24:58,971 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-02-21 03:24:58,971 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2022-02-21 03:24:58,972 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:24:58,975 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-02-21 03:24:58,976 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2022-02-21 03:24:58,976 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 16 states and 19 transitions. cyclomatic complexity: 4 [2022-02-21 03:24:58,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. cyclomatic complexity: 4 [2022-02-21 03:24:58,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:24:58,977 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2022-02-21 03:24:58,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:24:58,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:24:58,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 19 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:24:58,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:24:58,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:24:58,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 19 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:24:58,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Stem has 16 letters. Loop has 16 letters. [2022-02-21 03:24:58,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Stem has 16 letters. Loop has 16 letters. [2022-02-21 03:24:58,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 19 transitions. cyclomatic complexity: 4 Stem has 16 letters. Loop has 16 letters. [2022-02-21 03:24:58,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Stem has 7 letters. Loop has 7 letters. [2022-02-21 03:24:58,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Stem has 7 letters. Loop has 7 letters. [2022-02-21 03:24:58,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 19 transitions. cyclomatic complexity: 4 Stem has 7 letters. Loop has 7 letters. [2022-02-21 03:24:58,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Stem has 4 letters. Loop has 4 letters. [2022-02-21 03:24:58,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Stem has 4 letters. Loop has 4 letters. [2022-02-21 03:24:58,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 19 transitions. cyclomatic complexity: 4 Stem has 4 letters. Loop has 4 letters. [2022-02-21 03:24:58,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:24:58,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:24:58,985 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,985 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 19 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:24:58,985 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,985 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:24:58,985 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:24:58,986 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 19 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:24:58,986 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:24:58,986 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,987 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:24:58,987 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,987 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 19 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:24:58,987 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,987 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:24:58,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:24:58,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2022-02-21 03:24:58,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:24:58,995 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2022-02-21 03:24:58,995 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2022-02-21 03:24:58,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:58,997 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. cyclomatic complexity: 4 [2022-02-21 03:24:59,001 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:24:59,003 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2022-02-21 03:24:59,004 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-02-21 03:24:59,004 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-02-21 03:24:59,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-02-21 03:24:59,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 03:24:59,005 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:24:59,005 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:24:59,005 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:24:59,005 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 03:24:59,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-02-21 03:24:59,006 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:24:59,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:24:59,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 03:24:59 BoogieIcfgContainer [2022-02-21 03:24:59,012 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 03:24:59,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 03:24:59,015 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 03:24:59,015 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 03:24:59,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:24:57" (3/4) ... [2022-02-21 03:24:59,018 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-21 03:24:59,018 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 03:24:59,021 INFO L158 Benchmark]: Toolchain (without parser) took 2082.68ms. Allocated memory is still 92.3MB. Free memory was 71.6MB in the beginning and 47.0MB in the end (delta: 24.6MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2022-02-21 03:24:59,022 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 75.5MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:24:59,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.71ms. Allocated memory is still 92.3MB. Free memory was 71.4MB in the beginning and 62.8MB in the end (delta: 8.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 03:24:59,026 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.26ms. Allocated memory is still 92.3MB. Free memory was 62.6MB in the beginning and 61.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:24:59,027 INFO L158 Benchmark]: Boogie Preprocessor took 16.70ms. Allocated memory is still 92.3MB. Free memory was 61.3MB in the beginning and 60.4MB in the end (delta: 916.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:24:59,027 INFO L158 Benchmark]: RCFGBuilder took 211.50ms. Allocated memory is still 92.3MB. Free memory was 60.4MB in the beginning and 52.5MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 03:24:59,028 INFO L158 Benchmark]: BuchiAutomizer took 1631.10ms. Allocated memory is still 92.3MB. Free memory was 52.4MB in the beginning and 47.3MB in the end (delta: 5.1MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-02-21 03:24:59,028 INFO L158 Benchmark]: Witness Printer took 4.23ms. Allocated memory is still 92.3MB. Free memory was 47.3MB in the beginning and 47.0MB in the end (delta: 338.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:24:59,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 75.5MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 180.71ms. Allocated memory is still 92.3MB. Free memory was 71.4MB in the beginning and 62.8MB in the end (delta: 8.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.26ms. Allocated memory is still 92.3MB. Free memory was 62.6MB in the beginning and 61.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.70ms. Allocated memory is still 92.3MB. Free memory was 61.3MB in the beginning and 60.4MB in the end (delta: 916.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 211.50ms. Allocated memory is still 92.3MB. Free memory was 60.4MB in the beginning and 52.5MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1631.10ms. Allocated memory is still 92.3MB. Free memory was 52.4MB in the beginning and 47.3MB in the end (delta: 5.1MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Witness Printer took 4.23ms. Allocated memory is still 92.3MB. Free memory was 47.3MB in the beginning and 47.0MB in the end (delta: 338.8kB). 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 2-nested ranking function (if -2 * y + 1 > 0 then 1 else 0), (if -2 * y + 1 > 0 then -2 * y + 1 else 2 * x + 1) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. 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, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 5 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax170 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq182 hnf93 smp100 dnf100 smp100 tf106 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-02-21 03:24:59,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-02-21 03:24:59,286 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