./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-lit/hhk2008.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 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/loop-lit/hhk2008.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 87cc795aa65fe4d82c2d07650c9d4f8c9be47413 ........................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 19:41:59,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 19:41:59,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 19:41:59,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 19:41:59,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 19:41:59,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 19:41:59,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 19:41:59,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 19:41:59,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 19:41:59,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 19:41:59,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 19:41:59,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 19:41:59,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 19:41:59,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 19:41:59,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 19:41:59,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 19:41:59,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 19:41:59,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 19:41:59,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 19:41:59,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 19:41:59,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 19:41:59,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 19:41:59,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 19:41:59,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 19:41:59,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 19:41:59,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 19:41:59,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 19:41:59,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 19:41:59,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 19:41:59,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 19:41:59,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 19:41:59,440 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 19:41:59,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 19:41:59,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 19:41:59,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 19:41:59,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 19:41:59,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 19:41:59,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 19:41:59,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 19:41:59,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 19:41:59,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 19:41:59,448 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 19:41:59,483 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 19:41:59,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 19:41:59,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 19:41:59,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 19:41:59,485 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 19:41:59,486 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 19:41:59,486 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 19:41:59,486 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 19:41:59,486 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 19:41:59,487 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 19:41:59,487 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 19:41:59,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 19:41:59,488 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 19:41:59,488 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 19:41:59,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 19:41:59,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 19:41:59,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 19:41:59,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 19:41:59,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 19:41:59,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 19:41:59,490 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 19:41:59,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 19:41:59,490 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 19:41:59,490 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 19:41:59,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 19:41:59,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 19:41:59,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 19:41:59,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 19:41:59,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 19:41:59,491 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 19:41:59,493 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 19:41:59,493 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87cc795aa65fe4d82c2d07650c9d4f8c9be47413 [2021-07-06 19:41:59,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 19:41:59,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 19:41:59,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 19:41:59,873 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 19:41:59,874 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 19:41:59,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/hhk2008.i [2021-07-06 19:41:59,942 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad2086aa8/b13d109ac49a4927b1be0031ead7f41e/FLAGe9091a5f3 [2021-07-06 19:42:00,331 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 19:42:00,332 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/hhk2008.i [2021-07-06 19:42:00,337 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad2086aa8/b13d109ac49a4927b1be0031ead7f41e/FLAGe9091a5f3 [2021-07-06 19:42:00,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad2086aa8/b13d109ac49a4927b1be0031ead7f41e [2021-07-06 19:42:00,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 19:42:00,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 19:42:00,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 19:42:00,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 19:42:00,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 19:42:00,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 07:42:00" (1/1) ... [2021-07-06 19:42:00,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@261af062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:42:00, skipping insertion in model container [2021-07-06 19:42:00,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 07:42:00" (1/1) ... [2021-07-06 19:42:00,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 19:42:00,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 19:42:00,504 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/hhk2008.i[895,908] [2021-07-06 19:42:00,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 19:42:00,517 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 19:42:00,528 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/hhk2008.i[895,908] [2021-07-06 19:42:00,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 19:42:00,547 INFO L208 MainTranslator]: Completed translation [2021-07-06 19:42:00,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:42:00 WrapperNode [2021-07-06 19:42:00,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 19:42:00,549 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 19:42:00,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 19:42:00,550 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 19:42:00,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:42:00" (1/1) ... [2021-07-06 19:42:00,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:42:00" (1/1) ... [2021-07-06 19:42:00,611 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 19:42:00,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 19:42:00,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 19:42:00,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 19:42:00,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:42:00" (1/1) ... [2021-07-06 19:42:00,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:42:00" (1/1) ... [2021-07-06 19:42:00,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:42:00" (1/1) ... [2021-07-06 19:42:00,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:42:00" (1/1) ... [2021-07-06 19:42:00,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:42:00" (1/1) ... [2021-07-06 19:42:00,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:42:00" (1/1) ... [2021-07-06 19:42:00,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:42:00" (1/1) ... [2021-07-06 19:42:00,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 19:42:00,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 19:42:00,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 19:42:00,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 19:42:00,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:42:00" (1/1) ... [2021-07-06 19:42:00,652 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 19:42:00,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 19:42:00,678 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) [2021-07-06 19:42:00,703 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 [2021-07-06 19:42:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 19:42:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 19:42:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 19:42:00,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 19:42:00,928 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 19:42:00,928 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-06 19:42:00,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 07:42:00 BoogieIcfgContainer [2021-07-06 19:42:00,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 19:42:00,930 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 19:42:00,931 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 19:42:00,933 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 19:42:00,934 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 19:42:00,934 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 07:42:00" (1/3) ... [2021-07-06 19:42:00,935 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e9206bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 07:42:00, skipping insertion in model container [2021-07-06 19:42:00,935 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 19:42:00,935 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:42:00" (2/3) ... [2021-07-06 19:42:00,935 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e9206bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 07:42:00, skipping insertion in model container [2021-07-06 19:42:00,935 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 19:42:00,936 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 07:42:00" (3/3) ... [2021-07-06 19:42:00,937 INFO L389 chiAutomizerObserver]: Analyzing ICFG hhk2008.i [2021-07-06 19:42:00,974 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 19:42:00,974 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 19:42:00,974 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 19:42:00,974 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 19:42:00,974 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 19:42:00,974 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 19:42:00,974 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 19:42:00,975 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 19:42:00,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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) [2021-07-06 19:42:01,008 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-07-06 19:42:01,024 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 19:42:01,024 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 19:42:01,029 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-07-06 19:42:01,044 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-07-06 19:42:01,045 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 19:42:01,045 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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) [2021-07-06 19:42:01,046 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-07-06 19:42:01,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 19:42:01,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 19:42:01,047 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-07-06 19:42:01,047 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-07-06 19:42:01,053 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 3#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_~a~0, main_~b~0, main_~res~0, main_~cnt~0;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~res~0;havoc main_~cnt~0; 7#L28true assume !!(main_~a~0 <= 1000000); 10#L29true assume !!(0 <= main_~b~0 && main_~b~0 <= 1000000);main_~res~0 := main_~a~0;main_~cnt~0 := main_~b~0; 14#L32-2true [2021-07-06 19:42:01,053 INFO L793 eck$LassoCheckResult]: Loop: 14#L32-2true assume !!(main_~cnt~0 > 0);main_~cnt~0 := main_~cnt~0 - 1;main_~res~0 := 1 + main_~res~0; 14#L32-2true [2021-07-06 19:42:01,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 19:42:01,057 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2021-07-06 19:42:01,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 19:42:01,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455581451] [2021-07-06 19:42:01,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 19:42:01,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 19:42:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:42:01,158 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:42:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:42:01,183 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:42:01,207 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 19:42:01,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 19:42:01,210 INFO L82 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times [2021-07-06 19:42:01,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 19:42:01,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100868008] [2021-07-06 19:42:01,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 19:42:01,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 19:42:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:42:01,225 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:42:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:42:01,228 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:42:01,231 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 19:42:01,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 19:42:01,232 INFO L82 PathProgramCache]: Analyzing trace with hash 28695853, now seen corresponding path program 1 times [2021-07-06 19:42:01,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 19:42:01,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428890656] [2021-07-06 19:42:01,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 19:42:01,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 19:42:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:42:01,246 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:42:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:42:01,259 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:42:01,263 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 19:42:01,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:42:01,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-06 19:42:01,313 INFO L210 LassoAnalysis]: Preferences: [2021-07-06 19:42:01,314 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-07-06 19:42:01,314 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-07-06 19:42:01,314 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-07-06 19:42:01,315 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-07-06 19:42:01,315 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 19:42:01,315 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-07-06 19:42:01,315 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-07-06 19:42:01,315 INFO L133 ssoRankerPreferences]: Filename of dumped script: hhk2008.i_Iteration1_Loop [2021-07-06 19:42:01,315 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-07-06 19:42:01,316 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-07-06 19:42:01,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 19:42:01,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 19:42:01,382 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-07-06 19:42:01,383 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-07-06 19:42:01,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 19:42:01,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 19:42:01,389 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) [2021-07-06 19:42:01,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 19:42:01,398 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 19:42:01,409 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 [2021-07-06 19:42:01,450 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 [2021-07-06 19:42:01,450 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 19:42:01,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 19:42:01,452 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) [2021-07-06 19:42:01,453 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 [2021-07-06 19:42:01,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-07-06 19:42:01,454 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 19:42:01,502 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-07-06 19:42:01,513 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 [2021-07-06 19:42:01,513 INFO L210 LassoAnalysis]: Preferences: [2021-07-06 19:42:01,513 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-07-06 19:42:01,513 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-07-06 19:42:01,513 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-07-06 19:42:01,514 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-07-06 19:42:01,514 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 19:42:01,514 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-07-06 19:42:01,514 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-07-06 19:42:01,514 INFO L133 ssoRankerPreferences]: Filename of dumped script: hhk2008.i_Iteration1_Loop [2021-07-06 19:42:01,514 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-07-06 19:42:01,514 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-07-06 19:42:01,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 19:42:01,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 19:42:01,559 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-07-06 19:42:01,563 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-07-06 19:42:01,564 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 19:42:01,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 19:42:01,566 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) [2021-07-06 19:42:01,567 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 [2021-07-06 19:42:01,569 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 [2021-07-06 19:42:01,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 19:42:01,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 19:42:01,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 19:42:01,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 19:42:01,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 19:42:01,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-07-06 19:42:01,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 19:42:01,597 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-07-06 19:42:01,603 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-07-06 19:42:01,604 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-07-06 19:42:01,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 19:42:01,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 19:42:01,607 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) [2021-07-06 19:42:01,608 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 [2021-07-06 19:42:01,609 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-07-06 19:42:01,609 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-07-06 19:42:01,610 INFO L513 LassoAnalysis]: Proved termination. [2021-07-06 19:42:01,610 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~cnt~0) = 1*ULTIMATE.start_main_~cnt~0 Supporting invariants [] [2021-07-06 19:42:01,636 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 [2021-07-06 19:42:01,638 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-07-06 19:42:01,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 19:42:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 19:42:01,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2021-07-06 19:42:01,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 19:42:01,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:42:01,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 19:42:01,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:42:01,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 19:42:01,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:42:01,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 19:42:01,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:42:01,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 19:42:01,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:42:01,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 19:42:01,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:42:01,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 19:42:01,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:42:01,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 19:42:01,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:42:01,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 19:42:01,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:42:01,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 19:42:01,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:42:01,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 19:42:01,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:42:01,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 19:42:01,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:42:01,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 19:42:01,767 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 [2021-07-06 19:42:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 19:42:01,773 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-06 19:42:01,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 19:42:01,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 19:42:01,785 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 [2021-07-06 19:42:01,786 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-07-06 19:42:01,813 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 30 states and 36 transitions. Complement of second has 5 states. [2021-07-06 19:42:01,814 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 [2021-07-06 19:42:01,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-07-06 19:42:01,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2021-07-06 19:42:01,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 1 letters. [2021-07-06 19:42:01,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 19:42:01,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 5 letters. Loop has 1 letters. [2021-07-06 19:42:01,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 19:42:01,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 2 letters. [2021-07-06 19:42:01,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 19:42:01,819 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 36 transitions. [2021-07-06 19:42:01,821 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-07-06 19:42:01,823 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2021-07-06 19:42:01,824 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-07-06 19:42:01,824 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-07-06 19:42:01,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-07-06 19:42:01,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 19:42:01,825 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 19:42:01,825 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 19:42:01,825 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 19:42:01,825 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 19:42:01,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-07-06 19:42:01,825 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-07-06 19:42:01,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-07-06 19:42:01,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 07:42:01 BoogieIcfgContainer [2021-07-06 19:42:01,830 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 19:42:01,831 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 19:42:01,831 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 19:42:01,831 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 19:42:01,831 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 07:42:00" (3/4) ... [2021-07-06 19:42:01,834 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-07-06 19:42:01,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 19:42:01,835 INFO L168 Benchmark]: Toolchain (without parser) took 1475.18 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 49.6 MB in the beginning and 56.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2021-07-06 19:42:01,835 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 67.1 MB. Free memory is still 48.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 19:42:01,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.14 ms. Allocated memory is still 67.1 MB. Free memory was 49.5 MB in the beginning and 39.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-06 19:42:01,836 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.99 ms. Allocated memory is still 67.1 MB. Free memory was 39.9 MB in the beginning and 50.4 MB in the end (delta: -10.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 19:42:01,837 INFO L168 Benchmark]: Boogie Preprocessor took 32.99 ms. Allocated memory is still 67.1 MB. Free memory was 50.1 MB in the beginning and 49.3 MB in the end (delta: 886.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 19:42:01,837 INFO L168 Benchmark]: RCFGBuilder took 284.04 ms. Allocated memory is still 67.1 MB. Free memory was 49.3 MB in the beginning and 38.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-06 19:42:01,838 INFO L168 Benchmark]: BuchiAutomizer took 899.71 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 38.0 MB in the beginning and 57.5 MB in the end (delta: -19.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 19:42:01,838 INFO L168 Benchmark]: Witness Printer took 3.18 ms. Allocated memory is still 83.9 MB. Free memory was 57.5 MB in the beginning and 56.9 MB in the end (delta: 607.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 19:42:01,841 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 67.1 MB. Free memory is still 48.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 186.14 ms. Allocated memory is still 67.1 MB. Free memory was 49.5 MB in the beginning and 39.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.99 ms. Allocated memory is still 67.1 MB. Free memory was 39.9 MB in the beginning and 50.4 MB in the end (delta: -10.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.99 ms. Allocated memory is still 67.1 MB. Free memory was 50.1 MB in the beginning and 49.3 MB in the end (delta: 886.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 284.04 ms. Allocated memory is still 67.1 MB. Free memory was 49.3 MB in the beginning and 38.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 899.71 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 38.0 MB in the beginning and 57.5 MB in the end (delta: -19.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.18 ms. Allocated memory is still 83.9 MB. Free memory was 57.5 MB in the beginning and 56.9 MB in the end (delta: 607.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function cnt and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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: 14 SDtfs, 14 SDslu, 6 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 46ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 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! [2021-07-06 19:42:01,871 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...