./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/sum04-1.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- 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/loops/sum04-1.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 363837b614bad810335bbe0c369ca77c24cc87938da6245b414371c201391312 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 03:58:16,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 03:58:16,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 03:58:16,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 03:58:16,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 03:58:16,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 03:58:16,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 03:58:16,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 03:58:16,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 03:58:16,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 03:58:16,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 03:58:16,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 03:58:16,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 03:58:16,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 03:58:16,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 03:58:16,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 03:58:16,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 03:58:16,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 03:58:16,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 03:58:16,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 03:58:16,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 03:58:16,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 03:58:16,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 03:58:16,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 03:58:16,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 03:58:16,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 03:58:16,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 03:58:16,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 03:58:16,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 03:58:16,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 03:58:16,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 03:58:16,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 03:58:16,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 03:58:16,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 03:58:16,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 03:58:16,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 03:58:16,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 03:58:16,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 03:58:16,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 03:58:16,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 03:58:16,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 03:58:16,432 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 03:58:16,459 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 03:58:16,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 03:58:16,459 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 03:58:16,459 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 03:58:16,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 03:58:16,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 03:58:16,461 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 03:58:16,461 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 03:58:16,461 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 03:58:16,461 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 03:58:16,462 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 03:58:16,462 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 03:58:16,462 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 03:58:16,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 03:58:16,462 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 03:58:16,463 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 03:58:16,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 03:58:16,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 03:58:16,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 03:58:16,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 03:58:16,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 03:58:16,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 03:58:16,464 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 03:58:16,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 03:58:16,464 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 03:58:16,464 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 03:58:16,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 03:58:16,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 03:58:16,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 03:58:16,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 03:58:16,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 03:58:16,466 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 03:58:16,466 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 363837b614bad810335bbe0c369ca77c24cc87938da6245b414371c201391312 [2022-02-21 03:58:16,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 03:58:16,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 03:58:16,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 03:58:16,742 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 03:58:16,743 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 03:58:16,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum04-1.i [2022-02-21 03:58:16,805 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d917e5fe/70741d05411749beb72990980203ef39/FLAG043cc8d16 [2022-02-21 03:58:17,284 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 03:58:17,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum04-1.i [2022-02-21 03:58:17,290 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d917e5fe/70741d05411749beb72990980203ef39/FLAG043cc8d16 [2022-02-21 03:58:17,673 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d917e5fe/70741d05411749beb72990980203ef39 [2022-02-21 03:58:17,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 03:58:17,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 03:58:17,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 03:58:17,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 03:58:17,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 03:58:17,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:58:17" (1/1) ... [2022-02-21 03:58:17,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54486788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:17, skipping insertion in model container [2022-02-21 03:58:17,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:58:17" (1/1) ... [2022-02-21 03:58:17,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 03:58:17,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 03:58:17,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum04-1.i[808,821] [2022-02-21 03:58:17,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:58:17,879 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 03:58:17,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum04-1.i[808,821] [2022-02-21 03:58:17,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:58:17,905 INFO L208 MainTranslator]: Completed translation [2022-02-21 03:58:17,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:17 WrapperNode [2022-02-21 03:58:17,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 03:58:17,907 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 03:58:17,907 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 03:58:17,907 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 03:58:17,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:17" (1/1) ... [2022-02-21 03:58:17,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:17" (1/1) ... [2022-02-21 03:58:17,943 INFO L137 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 28 [2022-02-21 03:58:17,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 03:58:17,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 03:58:17,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 03:58:17,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 03:58:17,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:17" (1/1) ... [2022-02-21 03:58:17,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:17" (1/1) ... [2022-02-21 03:58:17,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:17" (1/1) ... [2022-02-21 03:58:17,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:17" (1/1) ... [2022-02-21 03:58:17,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:17" (1/1) ... [2022-02-21 03:58:17,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:17" (1/1) ... [2022-02-21 03:58:17,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:17" (1/1) ... [2022-02-21 03:58:17,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 03:58:17,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 03:58:17,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 03:58:17,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 03:58:17,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:17" (1/1) ... [2022-02-21 03:58:17,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:17,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:18,005 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 03:58:18,008 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 03:58:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 03:58:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 03:58:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 03:58:18,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 03:58:18,086 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 03:58:18,087 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 03:58:18,233 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 03:58:18,237 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 03:58:18,238 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-21 03:58:18,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:58:18 BoogieIcfgContainer [2022-02-21 03:58:18,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 03:58:18,240 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 03:58:18,240 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 03:58:18,252 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 03:58:18,253 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:58:18,253 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 03:58:17" (1/3) ... [2022-02-21 03:58:18,259 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71b28bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:58:18, skipping insertion in model container [2022-02-21 03:58:18,260 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:58:18,260 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:17" (2/3) ... [2022-02-21 03:58:18,260 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71b28bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:58:18, skipping insertion in model container [2022-02-21 03:58:18,260 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:58:18,262 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:58:18" (3/3) ... [2022-02-21 03:58:18,264 INFO L388 chiAutomizerObserver]: Analyzing ICFG sum04-1.i [2022-02-21 03:58:18,340 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 03:58:18,355 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 03:58:18,355 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 03:58:18,355 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 03:58:18,356 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 03:58:18,356 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 03:58:18,356 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 03:58:18,356 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 03:58:18,377 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 03:58:18,397 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:58:18,398 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:58:18,398 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:58:18,403 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2022-02-21 03:58:18,404 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-02-21 03:58:18,404 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 03:58:18,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 03:58:18,411 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:58:18,412 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:58:18,412 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:58:18,413 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2022-02-21 03:58:18,413 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-02-21 03:58:18,420 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_~i~0#1, main_~sn~0#1;havoc main_~i~0#1;main_~sn~0#1 := 0;main_~i~0#1 := 1; 11#L24-3true [2022-02-21 03:58:18,420 INFO L793 eck$LassoCheckResult]: Loop: 11#L24-3true assume !!(main_~i~0#1 <= 8); 8#L25true assume main_~i~0#1 < 4;main_~sn~0#1 := 2 + main_~sn~0#1; 7#L24-2true main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 11#L24-3true [2022-02-21 03:58:18,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:58:18,431 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-02-21 03:58:18,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:58:18,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868034841] [2022-02-21 03:58:18,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:58:18,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:58:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:18,536 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:58:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:18,577 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:58:18,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:58:18,581 INFO L85 PathProgramCache]: Analyzing trace with hash 39821, now seen corresponding path program 1 times [2022-02-21 03:58:18,581 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:58:18,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253143289] [2022-02-21 03:58:18,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:58:18,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:58:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:18,602 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:58:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:18,616 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:58:18,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:58:18,618 INFO L85 PathProgramCache]: Analyzing trace with hash 28698763, now seen corresponding path program 1 times [2022-02-21 03:58:18,618 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:58:18,618 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033964155] [2022-02-21 03:58:18,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:58:18,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:58:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:18,633 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:58:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:18,644 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:58:18,736 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:58:18,737 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:58:18,737 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:58:18,737 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:58:18,737 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-02-21 03:58:18,738 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:18,738 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:58:18,738 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:58:18,739 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration1_Loop [2022-02-21 03:58:18,739 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:58:18,739 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:58:18,757 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 03:58:18,768 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 03:58:18,772 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 03:58:18,864 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:58:18,864 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-02-21 03:58:18,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:18,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:18,873 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 03:58:18,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:58:18,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:58:18,883 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 03:58:18,929 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 03:58:18,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:18,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:18,931 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 03:58:18,931 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 03:58:18,933 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-02-21 03:58:18,933 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:58:18,962 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:58:18,962 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0#1=0} Honda state: {ULTIMATE.start_main_~sn~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~sn~0#1=4}, {ULTIMATE.start_main_~sn~0#1=0}, {ULTIMATE.start_main_~sn~0#1=-2}] Lambdas: [1, 6, 1] Nus: [0, 0] [2022-02-21 03:58:18,983 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 03:58:18,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:18,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:18,985 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 03:58:19,011 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 03:58:19,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:58:19,013 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:58:19,022 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:58:19,022 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-02-21 03:58:19,041 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 03:58:19,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:19,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:19,044 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 03:58:19,046 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 03:58:19,049 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:58:19,063 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:58:19,095 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 03:58:19,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:19,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:19,097 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 03:58:19,099 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 03:58:19,100 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-02-21 03:58:19,100 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:58:19,133 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-02-21 03:58:19,138 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 03:58:19,139 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:58:19,139 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:58:19,139 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:58:19,139 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:58:19,139 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-02-21 03:58:19,139 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:19,139 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:58:19,139 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:58:19,139 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration1_Loop [2022-02-21 03:58:19,139 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:58:19,139 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:58:19,141 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 03:58:19,144 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 03:58:19,147 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 03:58:19,203 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:58:19,207 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-02-21 03:58:19,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:19,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:19,210 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 03:58:19,214 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 03:58:19,215 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 03:58:19,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:58:19,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:58:19,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:58:19,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:58:19,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:58:19,229 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:58:19,229 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:58:19,232 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:58:19,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-02-21 03:58:19,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:19,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:19,256 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 03:58:19,259 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 03:58:19,260 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 03:58:19,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:58:19,267 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:58:19,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:58:19,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:58:19,267 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:58:19,268 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:58:19,268 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:58:19,277 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:58:19,293 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-02-21 03:58:19,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:19,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:19,295 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 03:58:19,296 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 03:58:19,297 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 03:58:19,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:58:19,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:58:19,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:58:19,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:58:19,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:58:19,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:58:19,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:58:19,316 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-02-21 03:58:19,320 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-02-21 03:58:19,320 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-02-21 03:58:19,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:19,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:19,327 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 03:58:19,329 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 03:58:19,360 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-02-21 03:58:19,360 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-02-21 03:58:19,360 INFO L513 LassoAnalysis]: Proved termination. [2022-02-21 03:58:19,361 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 7 Supporting invariants [] [2022-02-21 03:58:19,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-02-21 03:58:19,388 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-02-21 03:58:19,395 INFO L390 LassoCheck]: Loop: "assume !!(main_~i~0#1 <= 8);" "assume main_~i~0#1 < 4;main_~sn~0#1 := 2 + main_~sn~0#1;" "main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;" [2022-02-21 03:58:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:19,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:58:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:19,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-21 03:58:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:19,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:58:19,450 INFO L290 TraceCheckUtils]: 0: Hoare triple {22#unseeded} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); {22#unseeded} is VALID [2022-02-21 03:58:19,450 INFO L290 TraceCheckUtils]: 1: Hoare triple {22#unseeded} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_~i~0#1, main_~sn~0#1;havoc main_~i~0#1;main_~sn~0#1 := 0;main_~i~0#1 := 1; {22#unseeded} is VALID [2022-02-21 03:58:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:19,461 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-21 03:58:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:19,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:58:19,504 INFO L290 TraceCheckUtils]: 0: Hoare triple {25#(>= oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 7))} assume !!(main_~i~0#1 <= 8); {25#(>= oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 7))} is VALID [2022-02-21 03:58:19,505 INFO L290 TraceCheckUtils]: 1: Hoare triple {25#(>= oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 7))} assume main_~i~0#1 < 4;main_~sn~0#1 := 2 + main_~sn~0#1; {46#(and (>= oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 7)) (< |ULTIMATE.start_main_~i~0#1| 4))} is VALID [2022-02-21 03:58:19,505 INFO L290 TraceCheckUtils]: 2: Hoare triple {46#(and (>= oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 7)) (< |ULTIMATE.start_main_~i~0#1| 4))} main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; {35#(or (and (>= oldRank0 0) (> oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 7))) unseeded)} is VALID [2022-02-21 03:58:19,506 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 03:58:19,526 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2022-02-21 03:58:19,537 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:58:19,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:58:19,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,543 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-02-21 03:58:19,544 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2022-02-21 03:58:19,597 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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 35 states and 47 transitions. Complement of second has 7 states. [2022-02-21 03:58:19,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-02-21 03:58:19,598 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:58:19,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 03:58:19,599 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:58:19,599 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:58:19,600 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:58:19,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2022-02-21 03:58:19,602 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-02-21 03:58:19,603 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:58:19,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:58:19,603 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 47 transitions. [2022-02-21 03:58:19,604 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:58:19,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:58:19,604 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:58:19,606 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 03:58:19,607 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:58:19,607 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2022-02-21 03:58:19,607 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2022-02-21 03:58:19,608 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-02-21 03:58:19,609 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2022-02-21 03:58:19,609 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 35 states and 47 transitions. cyclomatic complexity: 14 [2022-02-21 03:58:19,609 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2022-02-21 03:58:19,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 3 letters. [2022-02-21 03:58:19,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:58:19,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:58:19,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 3 letters. [2022-02-21 03:58:19,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:19,614 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:19,614 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 3 letters. [2022-02-21 03:58:19,614 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:19,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:19,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 35 letters. Loop has 35 letters. [2022-02-21 03:58:19,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) Stem has 35 letters. Loop has 35 letters. [2022-02-21 03:58:19,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 35 letters. Loop has 35 letters. [2022-02-21 03:58:19,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 12 letters. Loop has 12 letters. [2022-02-21 03:58:19,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) Stem has 12 letters. Loop has 12 letters. [2022-02-21 03:58:19,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 12 letters. Loop has 12 letters. [2022-02-21 03:58:19,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 5 letters. Loop has 5 letters. [2022-02-21 03:58:19,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) Stem has 5 letters. Loop has 5 letters. [2022-02-21 03:58:19,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 5 letters. Loop has 5 letters. [2022-02-21 03:58:19,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 3 letters. Loop has 3 letters. [2022-02-21 03:58:19,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:58:19,621 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:58:19,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 3 letters. [2022-02-21 03:58:19,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:19,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:19,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 3 letters. [2022-02-21 03:58:19,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:58:19,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:58:19,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 03:58:19,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:58:19,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:58:19,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 3 letters. [2022-02-21 03:58:19,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:19,628 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,628 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:19,628 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,628 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 5 letters. Loop has 3 letters. [2022-02-21 03:58:19,628 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,629 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) Stem has 5 letters. Loop has 3 letters. [2022-02-21 03:58:19,629 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,629 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 5 letters. Loop has 3 letters. [2022-02-21 03:58:19,629 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,629 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 6 letters. Loop has 3 letters. [2022-02-21 03:58:19,629 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,630 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) Stem has 6 letters. Loop has 3 letters. [2022-02-21 03:58:19,630 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,630 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 6 letters. Loop has 3 letters. [2022-02-21 03:58:19,630 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 3 letters. [2022-02-21 03:58:19,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:19,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:19,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,632 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:58:19,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2022-02-21 03:58:19,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2022-02-21 03:58:19,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:58:19,639 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 5 letters. Loop has 3 letters. [2022-02-21 03:58:19,639 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 2 letters. Loop has 6 letters. [2022-02-21 03:58:19,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:19,640 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 47 transitions. cyclomatic complexity: 14 [2022-02-21 03:58:19,647 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:58:19,652 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 12 states and 15 transitions. [2022-02-21 03:58:19,653 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-02-21 03:58:19,653 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-02-21 03:58:19,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2022-02-21 03:58:19,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-02-21 03:58:19,654 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-02-21 03:58:19,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2022-02-21 03:58:19,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2022-02-21 03:58:19,671 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 03:58:19,671 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12 states and 15 transitions. Second operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:58:19,672 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states and 15 transitions. Second operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:58:19,673 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:58:19,675 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2022-02-21 03:58:19,679 INFO L93 Difference]: Finished difference Result 12 states and 15 transitions. [2022-02-21 03:58:19,679 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2022-02-21 03:58:19,680 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:58:19,680 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:58:19,680 INFO L74 IsIncluded]: Start isIncluded. First operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 12 states and 15 transitions. [2022-02-21 03:58:19,680 INFO L87 Difference]: Start difference. First operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 12 states and 15 transitions. [2022-02-21 03:58:19,681 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2022-02-21 03:58:19,682 INFO L93 Difference]: Finished difference Result 13 states and 17 transitions. [2022-02-21 03:58:19,682 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2022-02-21 03:58:19,682 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:58:19,682 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:58:19,682 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 03:58:19,682 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 03:58:19,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:58:19,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2022-02-21 03:58:19,684 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-02-21 03:58:19,684 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-02-21 03:58:19,684 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 03:58:19,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2022-02-21 03:58:19,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:58:19,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:58:19,688 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:58:19,688 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-02-21 03:58:19,688 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-02-21 03:58:19,688 INFO L791 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 96#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_~i~0#1, main_~sn~0#1;havoc main_~i~0#1;main_~sn~0#1 := 0;main_~i~0#1 := 1; 105#L24-3 assume !!(main_~i~0#1 <= 8); 101#L25 [2022-02-21 03:58:19,689 INFO L793 eck$LassoCheckResult]: Loop: 101#L25 assume !(main_~i~0#1 < 4); 97#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 98#L24-3 assume !!(main_~i~0#1 <= 8); 101#L25 [2022-02-21 03:58:19,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:58:19,689 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2022-02-21 03:58:19,693 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:58:19,693 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742707427] [2022-02-21 03:58:19,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:58:19,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:58:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:19,710 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:58:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:19,721 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:58:19,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:58:19,722 INFO L85 PathProgramCache]: Analyzing trace with hash 44743, now seen corresponding path program 1 times [2022-02-21 03:58:19,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:58:19,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648610182] [2022-02-21 03:58:19,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:58:19,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:58:19,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:19,729 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:58:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:19,739 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:58:19,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:58:19,740 INFO L85 PathProgramCache]: Analyzing trace with hash 889663585, now seen corresponding path program 1 times [2022-02-21 03:58:19,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:58:19,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942560298] [2022-02-21 03:58:19,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:58:19,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:58:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:19,799 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 03:58:19,810 INFO L290 TraceCheckUtils]: 0: Hoare triple {165#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); {165#true} is VALID [2022-02-21 03:58:19,810 INFO L290 TraceCheckUtils]: 1: Hoare triple {165#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_~i~0#1, main_~sn~0#1;havoc main_~i~0#1;main_~sn~0#1 := 0;main_~i~0#1 := 1; {167#(= 0 (+ (- 1) |ULTIMATE.start_main_~i~0#1|))} is VALID [2022-02-21 03:58:19,811 INFO L290 TraceCheckUtils]: 2: Hoare triple {167#(= 0 (+ (- 1) |ULTIMATE.start_main_~i~0#1|))} assume !!(main_~i~0#1 <= 8); {167#(= 0 (+ (- 1) |ULTIMATE.start_main_~i~0#1|))} is VALID [2022-02-21 03:58:19,811 INFO L290 TraceCheckUtils]: 3: Hoare triple {167#(= 0 (+ (- 1) |ULTIMATE.start_main_~i~0#1|))} assume !(main_~i~0#1 < 4); {166#false} is VALID [2022-02-21 03:58:19,812 INFO L290 TraceCheckUtils]: 4: Hoare triple {166#false} main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; {166#false} is VALID [2022-02-21 03:58:19,812 INFO L290 TraceCheckUtils]: 5: Hoare triple {166#false} assume !!(main_~i~0#1 <= 8); {166#false} is VALID [2022-02-21 03:58:19,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 03:58:19,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 03:58:19,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942560298] [2022-02-21 03:58:19,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942560298] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 03:58:19,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 03:58:19,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 03:58:19,814 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155461039] [2022-02-21 03:58:19,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 03:58:19,837 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:58:19,838 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:58:19,838 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:58:19,838 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:58:19,838 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-02-21 03:58:19,838 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:19,838 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:58:19,838 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:58:19,838 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration2_Loop [2022-02-21 03:58:19,839 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:58:19,839 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:58:19,839 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 03:58:19,841 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 03:58:19,870 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:58:19,871 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-02-21 03:58:19,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:19,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:19,872 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 03:58:19,896 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 03:58:19,897 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:58:19,897 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:58:19,918 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:58:19,918 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-02-21 03:58:19,936 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 03:58:19,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:19,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:19,938 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 03:58:19,939 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 03:58:19,940 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:58:19,940 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:58:19,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-02-21 03:58:19,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:19,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:19,975 INFO L229 MonitoredProcess]: Starting monitored process 13 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 03:58:19,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-02-21 03:58:19,977 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-02-21 03:58:19,977 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:58:20,014 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-02-21 03:58:20,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-02-21 03:58:20,022 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:58:20,022 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:58:20,022 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:58:20,022 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:58:20,022 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-02-21 03:58:20,022 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:20,022 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:58:20,022 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:58:20,022 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration2_Loop [2022-02-21 03:58:20,022 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:58:20,022 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:58:20,023 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 03:58:20,026 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 03:58:20,054 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:58:20,054 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-02-21 03:58:20,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:20,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:20,055 INFO L229 MonitoredProcess]: Starting monitored process 14 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 03:58:20,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-02-21 03:58:20,058 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 03:58:20,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:58:20,064 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:58:20,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:58:20,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:58:20,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:58:20,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:58:20,065 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:58:20,080 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:58:20,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-02-21 03:58:20,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:20,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:20,098 INFO L229 MonitoredProcess]: Starting monitored process 15 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 03:58:20,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-02-21 03:58:20,106 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 03:58:20,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:58:20,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:58:20,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:58:20,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:58:20,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:58:20,116 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:58:20,116 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:58:20,132 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-02-21 03:58:20,134 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-02-21 03:58:20,134 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-02-21 03:58:20,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:20,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:20,144 INFO L229 MonitoredProcess]: Starting monitored process 16 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 03:58:20,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-02-21 03:58:20,147 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-02-21 03:58:20,147 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-02-21 03:58:20,148 INFO L513 LassoAnalysis]: Proved termination. [2022-02-21 03:58:20,148 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 15 Supporting invariants [] [2022-02-21 03:58:20,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-02-21 03:58:20,175 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-02-21 03:58:20,180 INFO L390 LassoCheck]: Loop: "assume !(main_~i~0#1 < 4);" "main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;" "assume !!(main_~i~0#1 <= 8);" [2022-02-21 03:58:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:20,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:58:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:20,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-21 03:58:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:20,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:58:20,211 INFO L290 TraceCheckUtils]: 0: Hoare triple {168#unseeded} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); {168#unseeded} is VALID [2022-02-21 03:58:20,212 INFO L290 TraceCheckUtils]: 1: Hoare triple {168#unseeded} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_~i~0#1, main_~sn~0#1;havoc main_~i~0#1;main_~sn~0#1 := 0;main_~i~0#1 := 1; {168#unseeded} is VALID [2022-02-21 03:58:20,212 INFO L290 TraceCheckUtils]: 2: Hoare triple {168#unseeded} assume !!(main_~i~0#1 <= 8); {168#unseeded} is VALID [2022-02-21 03:58:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:20,218 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-21 03:58:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:20,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:58:20,296 INFO L290 TraceCheckUtils]: 0: Hoare triple {171#(>= oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 15))} assume !(main_~i~0#1 < 4); {171#(>= oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 15))} is VALID [2022-02-21 03:58:20,297 INFO L290 TraceCheckUtils]: 1: Hoare triple {171#(>= oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 15))} main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; {195#(<= (+ (div (+ (- 15) oldRank0) (- 2)) 1) |ULTIMATE.start_main_~i~0#1|)} is VALID [2022-02-21 03:58:20,297 INFO L290 TraceCheckUtils]: 2: Hoare triple {195#(<= (+ (div (+ (- 15) oldRank0) (- 2)) 1) |ULTIMATE.start_main_~i~0#1|)} assume !!(main_~i~0#1 <= 8); {181#(or (and (>= oldRank0 0) (> oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 15))) unseeded)} is VALID [2022-02-21 03:58:20,297 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 03:58:20,298 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 03:58:20,302 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:58:20,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 3 letters. Loop has 3 letters. [2022-02-21 03:58:20,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,302 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-02-21 03:58:20,302 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 03:58:20,327 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 18 states and 22 transitions. Complement of second has 6 states. [2022-02-21 03:58:20,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-02-21 03:58:20,328 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:58:20,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. cyclomatic complexity: 5 [2022-02-21 03:58:20,328 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:58:20,328 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:58:20,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 03:58:20,328 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:58:20,328 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:58:20,328 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:58:20,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 22 transitions. [2022-02-21 03:58:20,329 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:58:20,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:58:20,329 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 11 states and 14 transitions. cyclomatic complexity: 5 [2022-02-21 03:58:20,329 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2022-02-21 03:58:20,329 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 03:58:20,329 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:58:20,329 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2022-02-21 03:58:20,329 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 18 states and 22 transitions. cyclomatic complexity: 6 [2022-02-21 03:58:20,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 22 transitions. cyclomatic complexity: 6 [2022-02-21 03:58:20,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:58:20,330 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2022-02-21 03:58:20,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 14 transitions. cyclomatic complexity: 5 Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:58:20,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 3 letters. Loop has 3 letters. [2022-02-21 03:58:20,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 22 transitions. cyclomatic complexity: 6 Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:58:20,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 14 transitions. cyclomatic complexity: 5 Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:20,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 3 letters. [2022-02-21 03:58:20,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 22 transitions. cyclomatic complexity: 6 Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:20,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 14 transitions. cyclomatic complexity: 5 Stem has 18 letters. Loop has 18 letters. [2022-02-21 03:58:20,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 18 letters. Loop has 18 letters. [2022-02-21 03:58:20,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 22 transitions. cyclomatic complexity: 6 Stem has 18 letters. Loop has 18 letters. [2022-02-21 03:58:20,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 14 transitions. cyclomatic complexity: 5 Stem has 11 letters. Loop has 11 letters. [2022-02-21 03:58:20,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 11 letters. Loop has 11 letters. [2022-02-21 03:58:20,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 22 transitions. cyclomatic complexity: 6 Stem has 11 letters. Loop has 11 letters. [2022-02-21 03:58:20,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 14 transitions. cyclomatic complexity: 5 Stem has 4 letters. Loop has 4 letters. [2022-02-21 03:58:20,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 03:58:20,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 22 transitions. cyclomatic complexity: 6 Stem has 4 letters. Loop has 4 letters. [2022-02-21 03:58:20,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 14 transitions. cyclomatic complexity: 5 Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:20,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 3 letters. [2022-02-21 03:58:20,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 22 transitions. cyclomatic complexity: 6 Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:20,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 14 transitions. cyclomatic complexity: 5 Stem has 5 letters. Loop has 3 letters. [2022-02-21 03:58:20,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 5 letters. Loop has 3 letters. [2022-02-21 03:58:20,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 22 transitions. cyclomatic complexity: 6 Stem has 5 letters. Loop has 3 letters. [2022-02-21 03:58:20,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 14 transitions. cyclomatic complexity: 5 Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:58:20,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 3 letters. Loop has 3 letters. [2022-02-21 03:58:20,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 22 transitions. cyclomatic complexity: 6 Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:58:20,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 14 transitions. cyclomatic complexity: 5 Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:20,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 3 letters. [2022-02-21 03:58:20,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,333 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 22 transitions. cyclomatic complexity: 6 Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:20,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,333 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:58:20,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 03:58:20,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2022-02-21 03:58:20,333 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:58:20,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,333 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2022-02-21 03:58:20,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,334 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 6 letters. [2022-02-21 03:58:20,334 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:20,334 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. cyclomatic complexity: 6 [2022-02-21 03:58:20,334 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:58:20,334 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2022-02-21 03:58:20,334 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-02-21 03:58:20,334 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-02-21 03:58:20,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-02-21 03:58:20,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 03:58:20,335 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:58:20,335 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:58:20,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 03:58:20,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 03:58:20,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 03:58:20,337 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 03:58:20,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:58:20,337 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-02-21 03:58:20,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-21 03:58:20,337 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 03:58:20,341 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:58:20,342 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-02-21 03:58:20,342 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:58:20,342 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-02-21 03:58:20,342 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-02-21 03:58:20,342 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-02-21 03:58:20,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-02-21 03:58:20,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 03:58:20,342 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:58:20,342 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:58:20,342 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:58:20,342 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 03:58:20,343 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-02-21 03:58:20,343 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:58:20,343 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:58:20,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 03:58:20 BoogieIcfgContainer [2022-02-21 03:58:20,348 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 03:58:20,348 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 03:58:20,348 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 03:58:20,348 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 03:58:20,348 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:58:18" (3/4) ... [2022-02-21 03:58:20,350 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-21 03:58:20,350 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 03:58:20,351 INFO L158 Benchmark]: Toolchain (without parser) took 2673.38ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 57.1MB in the beginning and 53.8MB in the end (delta: 3.3MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2022-02-21 03:58:20,351 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 88.1MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:58:20,352 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.14ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 56.9MB in the beginning and 84.4MB in the end (delta: -27.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 03:58:20,352 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.26ms. Allocated memory is still 109.1MB. Free memory was 84.4MB in the beginning and 82.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:58:20,352 INFO L158 Benchmark]: Boogie Preprocessor took 27.05ms. Allocated memory is still 109.1MB. Free memory was 82.8MB in the beginning and 82.0MB in the end (delta: 833.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:58:20,352 INFO L158 Benchmark]: RCFGBuilder took 265.87ms. Allocated memory is still 109.1MB. Free memory was 82.0MB in the beginning and 73.2MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 03:58:20,353 INFO L158 Benchmark]: BuchiAutomizer took 2107.91ms. Allocated memory is still 109.1MB. Free memory was 72.8MB in the beginning and 53.8MB in the end (delta: 19.0MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2022-02-21 03:58:20,353 INFO L158 Benchmark]: Witness Printer took 2.13ms. Allocated memory is still 109.1MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:58:20,355 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 0.33ms. Allocated memory is still 88.1MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.14ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 56.9MB in the beginning and 84.4MB in the end (delta: -27.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.26ms. Allocated memory is still 109.1MB. Free memory was 84.4MB in the beginning and 82.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.05ms. Allocated memory is still 109.1MB. Free memory was 82.8MB in the beginning and 82.0MB in the end (delta: 833.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 265.87ms. Allocated memory is still 109.1MB. Free memory was 82.0MB in the beginning and 73.2MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2107.91ms. Allocated memory is still 109.1MB. Free memory was 72.8MB in the beginning and 53.8MB in the end (delta: 19.0MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Witness Printer took 2.13ms. Allocated memory is still 109.1MB. Free memory is still 53.8MB. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 7 and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 15 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 11 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp83 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq151 hnf94 smp100 dnf100 smp100 tf111 neg97 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-02-21 03:58:20,377 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-02-21 03:58:20,598 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