./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Pure2Phase-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 26d01a9c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/Pure2Phase-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2a633be8572429ac13238ea7bd46ff22a6a657dc142a1db237c08b8a68a6d4e8 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 08:53:49,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 08:53:49,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 08:53:49,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 08:53:49,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 08:53:49,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 08:53:49,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 08:53:49,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 08:53:49,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 08:53:49,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 08:53:49,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 08:53:49,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 08:53:49,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 08:53:49,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 08:53:49,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 08:53:49,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 08:53:49,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 08:53:49,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 08:53:49,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 08:53:49,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 08:53:49,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 08:53:49,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 08:53:49,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 08:53:49,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 08:53:49,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 08:53:49,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 08:53:49,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 08:53:49,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 08:53:49,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 08:53:49,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 08:53:49,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 08:53:49,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 08:53:49,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 08:53:49,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 08:53:49,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 08:53:49,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 08:53:49,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 08:53:49,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 08:53:49,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 08:53:49,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 08:53:49,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 08:53:49,084 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-18 08:53:49,101 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 08:53:49,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 08:53:49,101 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 08:53:49,101 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 08:53:49,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 08:53:49,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 08:53:49,103 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 08:53:49,103 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-18 08:53:49,103 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-18 08:53:49,103 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-18 08:53:49,104 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-18 08:53:49,104 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-18 08:53:49,104 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-18 08:53:49,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 08:53:49,105 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 08:53:49,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 08:53:49,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 08:53:49,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-18 08:53:49,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-18 08:53:49,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-18 08:53:49,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 08:53:49,105 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-18 08:53:49,106 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 08:53:49,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-18 08:53:49,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 08:53:49,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 08:53:49,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 08:53:49,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 08:53:49,107 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-18 08:53:49,108 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a633be8572429ac13238ea7bd46ff22a6a657dc142a1db237c08b8a68a6d4e8 [2023-02-18 08:53:49,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 08:53:49,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 08:53:49,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 08:53:49,297 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 08:53:49,297 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 08:53:49,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Pure2Phase-1.c [2023-02-18 08:53:50,254 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 08:53:50,396 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 08:53:50,397 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Pure2Phase-1.c [2023-02-18 08:53:50,401 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41b76ef10/5141c8b6ceef4d98a4a5a25b72d1b70c/FLAG919fa481c [2023-02-18 08:53:50,413 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41b76ef10/5141c8b6ceef4d98a4a5a25b72d1b70c [2023-02-18 08:53:50,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 08:53:50,417 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 08:53:50,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 08:53:50,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 08:53:50,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 08:53:50,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:53:50" (1/1) ... [2023-02-18 08:53:50,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cda2b89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:50, skipping insertion in model container [2023-02-18 08:53:50,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:53:50" (1/1) ... [2023-02-18 08:53:50,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 08:53:50,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 08:53:50,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:53:50,519 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 08:53:50,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:53:50,535 INFO L208 MainTranslator]: Completed translation [2023-02-18 08:53:50,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:50 WrapperNode [2023-02-18 08:53:50,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 08:53:50,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 08:53:50,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 08:53:50,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 08:53:50,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:50" (1/1) ... [2023-02-18 08:53:50,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:50" (1/1) ... [2023-02-18 08:53:50,554 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2023-02-18 08:53:50,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 08:53:50,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 08:53:50,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 08:53:50,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 08:53:50,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:50" (1/1) ... [2023-02-18 08:53:50,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:50" (1/1) ... [2023-02-18 08:53:50,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:50" (1/1) ... [2023-02-18 08:53:50,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:50" (1/1) ... [2023-02-18 08:53:50,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:50" (1/1) ... [2023-02-18 08:53:50,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:50" (1/1) ... [2023-02-18 08:53:50,565 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:50" (1/1) ... [2023-02-18 08:53:50,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:50" (1/1) ... [2023-02-18 08:53:50,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 08:53:50,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 08:53:50,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 08:53:50,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 08:53:50,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:50" (1/1) ... [2023-02-18 08:53:50,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:50,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:50,591 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) [2023-02-18 08:53:50,593 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 [2023-02-18 08:53:50,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 08:53:50,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 08:53:50,661 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 08:53:50,663 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 08:53:50,739 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 08:53:50,743 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 08:53:50,743 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 08:53:50,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:53:50 BoogieIcfgContainer [2023-02-18 08:53:50,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 08:53:50,745 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-18 08:53:50,745 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-18 08:53:50,748 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-18 08:53:50,748 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 08:53:50,748 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.02 08:53:50" (1/3) ... [2023-02-18 08:53:50,749 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@151a46ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.02 08:53:50, skipping insertion in model container [2023-02-18 08:53:50,749 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 08:53:50,749 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:50" (2/3) ... [2023-02-18 08:53:50,749 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@151a46ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.02 08:53:50, skipping insertion in model container [2023-02-18 08:53:50,749 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 08:53:50,749 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:53:50" (3/3) ... [2023-02-18 08:53:50,750 INFO L332 chiAutomizerObserver]: Analyzing ICFG Pure2Phase-1.c [2023-02-18 08:53:50,781 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-18 08:53:50,781 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-18 08:53:50,781 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-18 08:53:50,781 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-18 08:53:50,781 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-18 08:53:50,781 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-18 08:53:50,782 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-18 08:53:50,782 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-18 08:53:50,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:53:50,806 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-18 08:53:50,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:53:50,806 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:53:50,809 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-18 08:53:50,809 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-18 08:53:50,809 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-18 08:53:50,809 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:53:50,810 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-18 08:53:50,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:53:50,810 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:53:50,811 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-18 08:53:50,811 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-18 08:53:50,815 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~y~0#1, main_~z~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~z~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 10#L20true assume !!(-1073741823 <= main_~y~0#1 && main_~y~0#1 <= 1073741823); 6#L21true assume !!(main_~z~0#1 <= 1073741823); 4#L24-2true [2023-02-18 08:53:50,816 INFO L750 eck$LassoCheckResult]: Loop: 4#L24-2true assume !!(main_~z~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 11#L24true assume !(main_~y~0#1 >= 0);main_~z~0#1 := main_~z~0#1 - 1; 4#L24-2true [2023-02-18 08:53:50,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:50,819 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2023-02-18 08:53:50,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:53:50,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705680767] [2023-02-18 08:53:50,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:53:50,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:53:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:50,873 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:53:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:50,891 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:53:50,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:50,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1643, now seen corresponding path program 1 times [2023-02-18 08:53:50,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:53:50,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829009251] [2023-02-18 08:53:50,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:53:50,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:53:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:50,902 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:53:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:50,905 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:53:50,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:50,906 INFO L85 PathProgramCache]: Analyzing trace with hash 889571474, now seen corresponding path program 1 times [2023-02-18 08:53:50,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:53:50,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947819327] [2023-02-18 08:53:50,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:53:50,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:53:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:50,911 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:53:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:50,915 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:53:50,932 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:53:50,932 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:53:50,933 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:53:50,933 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:53:50,933 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:53:50,933 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:50,933 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:53:50,933 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:53:50,933 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration1_Loop [2023-02-18 08:53:50,934 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:53:50,934 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:53:50,944 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:50,950 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:50,951 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:50,953 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:50,965 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:53:50,965 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:53:50,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:50,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:50,970 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) [2023-02-18 08:53:50,980 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:53:50,980 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:50,995 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 [2023-02-18 08:53:51,004 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:53:51,004 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 08:53:51,010 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 [2023-02-18 08:53:51,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:51,012 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) [2023-02-18 08:53:51,014 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 [2023-02-18 08:53:51,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:53:51,016 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:51,057 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:53:51,057 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 08:53:51,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-02-18 08:53:51,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:51,077 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) [2023-02-18 08:53:51,081 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:53:51,081 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:51,091 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 [2023-02-18 08:53:51,120 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-18 08:53:51,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:51,121 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) [2023-02-18 08:53:51,122 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 [2023-02-18 08:53:51,124 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:53:51,124 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:51,144 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:53:51,149 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 [2023-02-18 08:53:51,150 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:53:51,150 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:53:51,150 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:53:51,150 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:53:51,150 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:53:51,150 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,150 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:53:51,150 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:53:51,150 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration1_Loop [2023-02-18 08:53:51,150 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:53:51,150 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:53:51,163 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:51,171 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:51,173 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:51,175 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:51,180 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:53:51,183 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:53:51,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:51,186 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) [2023-02-18 08:53:51,187 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 [2023-02-18 08:53:51,188 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 [2023-02-18 08:53:51,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:53:51,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:53:51,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:53:51,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:53:51,209 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:53:51,212 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:53:51,231 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:53:51,236 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 [2023-02-18 08:53:51,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:51,237 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) [2023-02-18 08:53:51,239 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 [2023-02-18 08:53:51,240 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 [2023-02-18 08:53:51,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:53:51,247 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:53:51,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:53:51,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:53:51,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:53:51,248 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:53:51,249 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:53:51,257 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:53:51,261 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-18 08:53:51,262 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-18 08:53:51,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:51,305 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) [2023-02-18 08:53:51,306 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 [2023-02-18 08:53:51,309 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:53:51,309 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:53:51,309 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:53:51,309 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = 2*ULTIMATE.start_main_~z~0#1 + 1 Supporting invariants [] [2023-02-18 08:53:51,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:51,317 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:53:51,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:53:51,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:53:51,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:53:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:53:51,364 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:53:51,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:53:51,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:53:51,390 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-18 08:53:51,391 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 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) [2023-02-18 08:53:51,417 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 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) Result 30 states and 39 transitions. Complement of second has 8 states. [2023-02-18 08:53:51,419 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 [2023-02-18 08:53:51,422 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2023-02-18 08:53:51,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2023-02-18 08:53:51,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-18 08:53:51,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:53:51,424 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-18 08:53:51,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:53:51,424 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 4 letters. Loop has 4 letters. [2023-02-18 08:53:51,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:53:51,425 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2023-02-18 08:53:51,426 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-18 08:53:51,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 11 states and 14 transitions. [2023-02-18 08:53:51,429 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-18 08:53:51,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-18 08:53:51,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2023-02-18 08:53:51,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-18 08:53:51,430 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-02-18 08:53:51,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2023-02-18 08:53:51,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-02-18 08:53:51,445 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) [2023-02-18 08:53:51,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2023-02-18 08:53:51,446 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-02-18 08:53:51,446 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-02-18 08:53:51,447 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-18 08:53:51,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2023-02-18 08:53:51,448 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-18 08:53:51,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:53:51,448 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:53:51,448 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-02-18 08:53:51,449 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-18 08:53:51,449 INFO L748 eck$LassoCheckResult]: Stem: 94#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 95#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~y~0#1, main_~z~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~z~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 96#L20 assume !!(-1073741823 <= main_~y~0#1 && main_~y~0#1 <= 1073741823); 92#L21 assume !!(main_~z~0#1 <= 1073741823); 93#L24-2 assume !!(main_~z~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 90#L24 assume main_~y~0#1 >= 0;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 91#L27 [2023-02-18 08:53:51,449 INFO L750 eck$LassoCheckResult]: Loop: 91#L27 assume !!(main_~z~0#1 <= 1073741823); 86#L24-2 assume !!(main_~z~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 87#L24 assume main_~y~0#1 >= 0;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 91#L27 [2023-02-18 08:53:51,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:51,453 INFO L85 PathProgramCache]: Analyzing trace with hash 889571467, now seen corresponding path program 1 times [2023-02-18 08:53:51,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:53:51,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248628240] [2023-02-18 08:53:51,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:53:51,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:53:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:51,462 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:53:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:51,465 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:53:51,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:51,466 INFO L85 PathProgramCache]: Analyzing trace with hash 58335, now seen corresponding path program 1 times [2023-02-18 08:53:51,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:53:51,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907911043] [2023-02-18 08:53:51,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:53:51,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:53:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:51,469 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:53:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:51,472 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:53:51,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:51,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1275385621, now seen corresponding path program 1 times [2023-02-18 08:53:51,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:53:51,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289309783] [2023-02-18 08:53:51,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:53:51,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:53:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:51,477 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:53:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:51,481 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:53:51,483 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:53:51,483 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:53:51,483 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:53:51,483 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:53:51,483 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:53:51,483 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,484 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:53:51,484 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:53:51,484 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration2_Loop [2023-02-18 08:53:51,484 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:53:51,484 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:53:51,485 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:51,486 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:51,487 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:51,488 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:51,491 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:53:51,491 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:53:51,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:51,492 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) [2023-02-18 08:53:51,495 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 [2023-02-18 08:53:51,496 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:53:51,496 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:51,517 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:53:51,517 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 08:53:51,522 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 [2023-02-18 08:53:51,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:51,524 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) [2023-02-18 08:53:51,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:53:51,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:51,532 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 [2023-02-18 08:53:51,554 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:53:51,554 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 08:53:51,557 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 [2023-02-18 08:53:51,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:51,558 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) [2023-02-18 08:53:51,559 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 [2023-02-18 08:53:51,561 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:53:51,561 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:51,577 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:53:51,577 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0#1=1006632960, ULTIMATE.start_main_#t~nondet2#1=1006632960} Honda state: {ULTIMATE.start_main_~z~0#1=1006632960, ULTIMATE.start_main_#t~nondet2#1=1006632960} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 08:53:51,580 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 [2023-02-18 08:53:51,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:51,581 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) [2023-02-18 08:53:51,583 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 [2023-02-18 08:53:51,584 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:53:51,584 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:51,594 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 [2023-02-18 08:53:51,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:51,596 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) [2023-02-18 08:53:51,597 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 [2023-02-18 08:53:51,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:53:51,599 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:51,649 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:53:51,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-02-18 08:53:51,652 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:53:51,652 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:53:51,652 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:53:51,652 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:53:51,652 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:53:51,652 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,652 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:53:51,652 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:53:51,652 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration2_Loop [2023-02-18 08:53:51,653 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:53:51,653 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:53:51,654 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:51,655 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:51,656 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:51,657 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:51,661 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:53:51,662 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:53:51,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:51,673 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) [2023-02-18 08:53:51,674 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 [2023-02-18 08:53:51,675 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 [2023-02-18 08:53:51,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:53:51,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:53:51,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:53:51,681 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:53:51,683 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:53:51,683 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:53:51,699 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:53:51,704 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 [2023-02-18 08:53:51,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:51,705 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) [2023-02-18 08:53:51,710 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 [2023-02-18 08:53:51,710 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 [2023-02-18 08:53:51,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:53:51,716 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:53:51,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:53:51,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:53:51,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:53:51,717 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:53:51,717 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:53:51,719 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:53:51,722 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 [2023-02-18 08:53:51,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:51,723 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) [2023-02-18 08:53:51,724 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 [2023-02-18 08:53:51,725 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 [2023-02-18 08:53:51,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:53:51,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:53:51,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:53:51,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:53:51,734 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:53:51,734 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:53:51,744 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:53:51,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:51,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:51,749 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2023-02-18 08:53:51,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-18 08:53:51,752 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 [2023-02-18 08:53:51,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:53:51,758 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:53:51,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:53:51,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:53:51,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:53:51,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:53:51,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:53:51,768 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:53:51,770 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-18 08:53:51,770 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-18 08:53:51,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:51,772 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2023-02-18 08:53:51,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-18 08:53:51,779 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:53:51,779 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:53:51,779 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:53:51,779 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-18 08:53:51,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:51,782 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:53:51,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:53:51,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:53:51,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:53:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:53:51,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:53:51,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:53:51,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:53:51,825 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-18 08:53:51,825 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 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-02-18 08:53:51,838 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 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 21 transitions. Complement of second has 6 states. [2023-02-18 08:53:51,839 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 [2023-02-18 08:53:51,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-02-18 08:53:51,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-02-18 08:53:51,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2023-02-18 08:53:51,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:53:51,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 3 letters. [2023-02-18 08:53:51,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:53:51,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 6 letters. [2023-02-18 08:53:51,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:53:51,841 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2023-02-18 08:53:51,841 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-18 08:53:51,842 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 21 transitions. [2023-02-18 08:53:51,842 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-18 08:53:51,842 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-02-18 08:53:51,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2023-02-18 08:53:51,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-18 08:53:51,842 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2023-02-18 08:53:51,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2023-02-18 08:53:51,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2023-02-18 08:53:51,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 13 states have internal predecessors, (19), 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) [2023-02-18 08:53:51,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2023-02-18 08:53:51,843 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2023-02-18 08:53:51,844 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2023-02-18 08:53:51,844 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-18 08:53:51,844 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 19 transitions. [2023-02-18 08:53:51,844 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-18 08:53:51,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:53:51,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:53:51,844 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:53:51,844 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-18 08:53:51,845 INFO L748 eck$LassoCheckResult]: Stem: 170#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 171#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~y~0#1, main_~z~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~z~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 172#L20 assume !!(-1073741823 <= main_~y~0#1 && main_~y~0#1 <= 1073741823); 168#L21 assume !!(main_~z~0#1 <= 1073741823); 169#L24-2 assume !!(main_~z~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 175#L24 assume main_~y~0#1 >= 0;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 166#L27 assume !!(main_~z~0#1 <= 1073741823); 162#L24-2 [2023-02-18 08:53:51,845 INFO L750 eck$LassoCheckResult]: Loop: 162#L24-2 assume !!(main_~z~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 163#L24 assume !(main_~y~0#1 >= 0);main_~z~0#1 := main_~z~0#1 - 1; 162#L24-2 [2023-02-18 08:53:51,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:51,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1806911730, now seen corresponding path program 2 times [2023-02-18 08:53:51,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:53:51,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890647292] [2023-02-18 08:53:51,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:53:51,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:53:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:51,849 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:53:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:51,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:53:51,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:51,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1643, now seen corresponding path program 2 times [2023-02-18 08:53:51,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:53:51,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501349648] [2023-02-18 08:53:51,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:53:51,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:53:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:51,873 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:53:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:51,875 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:53:51,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:51,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1275385628, now seen corresponding path program 1 times [2023-02-18 08:53:51,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:53:51,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520867256] [2023-02-18 08:53:51,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:53:51,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:53:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:51,880 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:53:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:51,884 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:53:51,886 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:53:51,886 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:53:51,886 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:53:51,886 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:53:51,886 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:53:51,886 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,886 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:53:51,886 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:53:51,887 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration3_Loop [2023-02-18 08:53:51,887 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:53:51,887 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:53:51,888 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:51,889 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:51,890 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:51,890 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:51,893 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:53:51,893 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:53:51,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:51,908 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2023-02-18 08:53:51,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-18 08:53:51,958 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:53:51,958 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:51,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:51,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:51,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:51,978 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2023-02-18 08:53:51,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-18 08:53:51,983 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:53:51,983 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:52,040 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:53:52,040 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=-6} Honda state: {ULTIMATE.start_main_~y~0#1=-6} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~y~0#1=-1}, {ULTIMATE.start_main_~y~0#1=0}] Lambdas: [2, 1, 1] Nus: [0, 1] [2023-02-18 08:53:52,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:52,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:52,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:52,055 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2023-02-18 08:53:52,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-18 08:53:52,061 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:53:52,061 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:52,072 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:53:52,072 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 08:53:52,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:52,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:52,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:52,076 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2023-02-18 08:53:52,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-18 08:53:52,080 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:53:52,080 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:52,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-02-18 08:53:52,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:52,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:52,092 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2023-02-18 08:53:52,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-18 08:53:52,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:53:52,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:52,108 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:53:52,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:52,111 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:53:52,112 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:53:52,112 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:53:52,112 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:53:52,112 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:53:52,112 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:52,112 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:53:52,112 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:53:52,112 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration3_Loop [2023-02-18 08:53:52,112 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:53:52,112 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:53:52,113 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:52,114 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:52,115 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:52,116 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:52,119 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:53:52,121 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:53:52,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:52,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:52,122 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2023-02-18 08:53:52,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-02-18 08:53:52,126 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 [2023-02-18 08:53:52,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:53:52,132 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:53:52,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:53:52,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:53:52,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:53:52,133 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:53:52,133 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:53:52,149 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:53:52,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:52,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:52,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:52,155 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2023-02-18 08:53:52,161 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 [2023-02-18 08:53:52,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:53:52,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:53:52,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:53:52,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:53:52,170 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:53:52,170 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:53:52,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-18 08:53:52,182 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:53:52,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:52,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:52,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:52,188 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2023-02-18 08:53:52,195 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 [2023-02-18 08:53:52,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:53:52,201 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:53:52,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:53:52,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:53:52,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:53:52,202 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:53:52,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:53:52,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-18 08:53:52,214 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:53:52,215 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-18 08:53:52,216 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-18 08:53:52,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:52,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:52,218 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2023-02-18 08:53:52,221 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:53:52,221 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:53:52,221 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:53:52,221 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = 2*ULTIMATE.start_main_~z~0#1 + 1 Supporting invariants [] [2023-02-18 08:53:52,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-02-18 08:53:52,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:52,226 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:53:52,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:53:52,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:53:52,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:53:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:53:52,253 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:53:52,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:53:52,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:53:52,260 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-18 08:53:52,260 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 19 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-02-18 08:53:52,272 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 19 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 21 states and 28 transitions. Complement of second has 5 states. [2023-02-18 08:53:52,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-18 08:53:52,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-02-18 08:53:52,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2023-02-18 08:53:52,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2023-02-18 08:53:52,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:53:52,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2023-02-18 08:53:52,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:53:52,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 4 letters. [2023-02-18 08:53:52,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:53:52,274 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2023-02-18 08:53:52,275 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-18 08:53:52,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 17 states and 22 transitions. [2023-02-18 08:53:52,276 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-18 08:53:52,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-18 08:53:52,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2023-02-18 08:53:52,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-18 08:53:52,276 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2023-02-18 08:53:52,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2023-02-18 08:53:52,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-02-18 08:53:52,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 16 states have internal predecessors, (22), 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) [2023-02-18 08:53:52,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2023-02-18 08:53:52,278 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2023-02-18 08:53:52,278 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2023-02-18 08:53:52,278 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-18 08:53:52,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2023-02-18 08:53:52,278 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-18 08:53:52,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:53:52,278 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:53:52,279 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2023-02-18 08:53:52,279 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-18 08:53:52,279 INFO L748 eck$LassoCheckResult]: Stem: 253#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 254#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~y~0#1, main_~z~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~z~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 255#L20 assume !!(-1073741823 <= main_~y~0#1 && main_~y~0#1 <= 1073741823); 251#L21 assume !!(main_~z~0#1 <= 1073741823); 252#L24-2 assume !!(main_~z~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 257#L24 assume main_~y~0#1 >= 0;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 248#L27 assume !!(main_~z~0#1 <= 1073741823); 249#L24-2 assume !!(main_~z~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 260#L24 assume main_~y~0#1 >= 0;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 250#L27 assume !!(main_~z~0#1 <= 1073741823); 244#L24-2 [2023-02-18 08:53:52,279 INFO L750 eck$LassoCheckResult]: Loop: 244#L24-2 assume !!(main_~z~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 245#L24 assume !(main_~y~0#1 >= 0);main_~z~0#1 := main_~z~0#1 - 1; 244#L24-2 [2023-02-18 08:53:52,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:52,280 INFO L85 PathProgramCache]: Analyzing trace with hash 882248616, now seen corresponding path program 3 times [2023-02-18 08:53:52,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:53:52,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230960366] [2023-02-18 08:53:52,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:53:52,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:53:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:52,285 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:53:52,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:52,289 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:53:52,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:52,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1643, now seen corresponding path program 3 times [2023-02-18 08:53:52,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:53:52,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878399204] [2023-02-18 08:53:52,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:53:52,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:53:52,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:52,292 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:53:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:52,294 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:53:52,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:52,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1732363346, now seen corresponding path program 2 times [2023-02-18 08:53:52,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:53:52,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824795256] [2023-02-18 08:53:52,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:53:52,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:53:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:52,300 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:53:52,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:52,308 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:53:52,311 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:53:52,312 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:53:52,312 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:53:52,312 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:53:52,312 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:53:52,312 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:52,312 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:53:52,313 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:53:52,313 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration4_Loop [2023-02-18 08:53:52,314 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:53:52,314 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:53:52,314 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:52,317 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:52,318 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:52,318 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:52,320 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:53:52,322 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:53:52,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:52,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:52,325 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2023-02-18 08:53:52,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-02-18 08:53:52,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:53:52,328 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:52,339 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-02-18 08:53:52,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:52,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:52,343 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2023-02-18 08:53:52,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-02-18 08:53:52,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:53:52,348 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:52,364 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:53:52,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:52,369 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:53:52,369 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:53:52,369 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:53:52,369 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:53:52,369 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:53:52,369 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:52,369 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:53:52,369 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:53:52,369 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration4_Loop [2023-02-18 08:53:52,370 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:53:52,370 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:53:52,371 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:52,372 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:52,373 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:52,373 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:52,375 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:53:52,376 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:53:52,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:52,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:52,381 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2023-02-18 08:53:52,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-02-18 08:53:52,394 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 [2023-02-18 08:53:52,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:53:52,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:53:52,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:53:52,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:53:52,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:53:52,402 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:53:52,402 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:53:52,416 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:53:52,418 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-18 08:53:52,418 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-18 08:53:52,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:52,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:52,420 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2023-02-18 08:53:52,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-02-18 08:53:52,422 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:53:52,422 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:53:52,422 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:53:52,422 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = 2*ULTIMATE.start_main_~z~0#1 + 1 Supporting invariants [] [2023-02-18 08:53:52,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:52,425 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:53:52,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:52,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:53:52,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:53:52,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:53:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:53:52,443 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:53:52,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:53:52,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:53:52,448 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-18 08:53:52,448 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:53:52,455 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 24 transitions. Complement of second has 5 states. [2023-02-18 08:53:52,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-18 08:53:52,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:53:52,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2023-02-18 08:53:52,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 10 letters. Loop has 2 letters. [2023-02-18 08:53:52,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:53:52,456 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-18 08:53:52,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:53:52,487 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 [2023-02-18 08:53:52,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:53:52,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:53:52,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:52,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-02-18 08:53:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:53:52,501 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:53:52,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:53:52,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:52,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:53:52,509 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-18 08:53:52,509 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:53:52,521 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 24 transitions. Complement of second has 5 states. [2023-02-18 08:53:52,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-18 08:53:52,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:53:52,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2023-02-18 08:53:52,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 10 letters. Loop has 2 letters. [2023-02-18 08:53:52,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:53:52,523 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-18 08:53:52,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:53:52,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:53:52,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:53:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:53:52,542 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:53:52,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:53:52,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:53:52,548 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-18 08:53:52,548 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:53:52,559 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 28 transitions. Complement of second has 4 states. [2023-02-18 08:53:52,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-18 08:53:52,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:53:52,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2023-02-18 08:53:52,560 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2023-02-18 08:53:52,560 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:53:52,560 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 2 letters. [2023-02-18 08:53:52,560 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:53:52,560 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 4 letters. [2023-02-18 08:53:52,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:53:52,561 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 28 transitions. [2023-02-18 08:53:52,561 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-18 08:53:52,561 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2023-02-18 08:53:52,562 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-18 08:53:52,562 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-18 08:53:52,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-18 08:53:52,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-18 08:53:52,562 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 08:53:52,562 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 08:53:52,562 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 08:53:52,562 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-18 08:53:52,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-18 08:53:52,562 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-18 08:53:52,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-18 08:53:52,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.02 08:53:52 BoogieIcfgContainer [2023-02-18 08:53:52,568 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-18 08:53:52,568 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 08:53:52,568 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 08:53:52,568 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 08:53:52,568 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:53:50" (3/4) ... [2023-02-18 08:53:52,570 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-18 08:53:52,570 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 08:53:52,571 INFO L158 Benchmark]: Toolchain (without parser) took 2153.80ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 100.6MB in the beginning and 156.0MB in the end (delta: -55.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:53:52,571 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory was 53.5MB in the beginning and 53.4MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:53:52,571 INFO L158 Benchmark]: CACSL2BoogieTranslator took 118.84ms. Allocated memory is still 148.9MB. Free memory was 100.1MB in the beginning and 91.0MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 08:53:52,571 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.98ms. Allocated memory is still 148.9MB. Free memory was 91.0MB in the beginning and 89.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:53:52,572 INFO L158 Benchmark]: Boogie Preprocessor took 14.84ms. Allocated memory is still 148.9MB. Free memory was 89.5MB in the beginning and 88.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:53:52,572 INFO L158 Benchmark]: RCFGBuilder took 174.19ms. Allocated memory is still 148.9MB. Free memory was 88.4MB in the beginning and 80.1MB in the end (delta: 8.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 08:53:52,572 INFO L158 Benchmark]: BuchiAutomizer took 1822.54ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 80.1MB in the beginning and 157.1MB in the end (delta: -77.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:53:52,572 INFO L158 Benchmark]: Witness Printer took 2.34ms. Allocated memory is still 199.2MB. Free memory was 157.1MB in the beginning and 156.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 08:53:52,573 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory was 53.5MB in the beginning and 53.4MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 118.84ms. Allocated memory is still 148.9MB. Free memory was 100.1MB in the beginning and 91.0MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.98ms. Allocated memory is still 148.9MB. Free memory was 91.0MB in the beginning and 89.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.84ms. Allocated memory is still 148.9MB. Free memory was 89.5MB in the beginning and 88.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 174.19ms. Allocated memory is still 148.9MB. Free memory was 88.4MB in the beginning and 80.1MB in the end (delta: 8.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1822.54ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 80.1MB in the beginning and 157.1MB in the end (delta: -77.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.34ms. Allocated memory is still 199.2MB. Free memory was 157.1MB in the beginning and 156.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * z + 1 and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function 2 * z + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * z + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 56 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax163 hnf100 lsp35 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf94 smp100 dnf100 smp100 tf112 neg95 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-18 08:53:52,583 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