./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/PastaB14.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5317dae Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/PastaB14.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 07f4699c371f295a25887a3f67dc54332a57ae32b5b342f10fdc7ddcf36f265e --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 04:33:29,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 04:33:29,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 04:33:29,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 04:33:29,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 04:33:29,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 04:33:29,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 04:33:29,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 04:33:29,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 04:33:29,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 04:33:29,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 04:33:29,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 04:33:29,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 04:33:29,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 04:33:29,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 04:33:29,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 04:33:29,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 04:33:29,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 04:33:29,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 04:33:29,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 04:33:29,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 04:33:29,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 04:33:29,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 04:33:29,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 04:33:29,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 04:33:29,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 04:33:29,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 04:33:29,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 04:33:29,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 04:33:29,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 04:33:29,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 04:33:29,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 04:33:29,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 04:33:29,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 04:33:29,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 04:33:29,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 04:33:29,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 04:33:29,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 04:33:29,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 04:33:29,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 04:33:29,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 04:33:29,962 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-16 04:33:29,989 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 04:33:29,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 04:33:29,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 04:33:29,990 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 04:33:29,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 04:33:29,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 04:33:29,990 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 04:33:29,990 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-16 04:33:29,991 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-16 04:33:29,991 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-16 04:33:29,991 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-16 04:33:29,991 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-16 04:33:29,991 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-16 04:33:29,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 04:33:29,991 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 04:33:29,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 04:33:29,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 04:33:29,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-16 04:33:29,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-16 04:33:29,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-16 04:33:29,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 04:33:29,992 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-16 04:33:29,992 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 04:33:29,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-16 04:33:29,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 04:33:29,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 04:33:29,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 04:33:29,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 04:33:29,993 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-16 04:33:29,993 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07f4699c371f295a25887a3f67dc54332a57ae32b5b342f10fdc7ddcf36f265e [2023-02-16 04:33:30,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 04:33:30,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 04:33:30,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 04:33:30,230 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 04:33:30,231 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 04:33:30,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/PastaB14.c [2023-02-16 04:33:31,238 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 04:33:31,349 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 04:33:31,349 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/PastaB14.c [2023-02-16 04:33:31,353 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cced544d2/f6d11d1a5d9244a9a92db1ace12ffd85/FLAG9c644b45a [2023-02-16 04:33:31,362 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cced544d2/f6d11d1a5d9244a9a92db1ace12ffd85 [2023-02-16 04:33:31,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 04:33:31,364 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 04:33:31,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 04:33:31,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 04:33:31,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 04:33:31,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:33:31" (1/1) ... [2023-02-16 04:33:31,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6865de58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:31, skipping insertion in model container [2023-02-16 04:33:31,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:33:31" (1/1) ... [2023-02-16 04:33:31,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 04:33:31,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 04:33:31,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:33:31,516 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 04:33:31,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:33:31,533 INFO L208 MainTranslator]: Completed translation [2023-02-16 04:33:31,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:31 WrapperNode [2023-02-16 04:33:31,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 04:33:31,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 04:33:31,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 04:33:31,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 04:33:31,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:31" (1/1) ... [2023-02-16 04:33:31,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:31" (1/1) ... [2023-02-16 04:33:31,552 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2023-02-16 04:33:31,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 04:33:31,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 04:33:31,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 04:33:31,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 04:33:31,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:31" (1/1) ... [2023-02-16 04:33:31,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:31" (1/1) ... [2023-02-16 04:33:31,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:31" (1/1) ... [2023-02-16 04:33:31,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:31" (1/1) ... [2023-02-16 04:33:31,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:31" (1/1) ... [2023-02-16 04:33:31,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:31" (1/1) ... [2023-02-16 04:33:31,564 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:31" (1/1) ... [2023-02-16 04:33:31,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:31" (1/1) ... [2023-02-16 04:33:31,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 04:33:31,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 04:33:31,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 04:33:31,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 04:33:31,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:31" (1/1) ... [2023-02-16 04:33:31,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:31,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:31,587 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) [2023-02-16 04:33:31,593 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 [2023-02-16 04:33:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 04:33:31,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 04:33:31,655 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 04:33:31,656 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 04:33:31,717 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 04:33:31,721 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 04:33:31,721 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-16 04:33:31,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:33:31 BoogieIcfgContainer [2023-02-16 04:33:31,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 04:33:31,724 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-16 04:33:31,724 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-16 04:33:31,727 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-16 04:33:31,727 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-16 04:33:31,727 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.02 04:33:31" (1/3) ... [2023-02-16 04:33:31,728 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35371124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.02 04:33:31, skipping insertion in model container [2023-02-16 04:33:31,728 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-16 04:33:31,728 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:31" (2/3) ... [2023-02-16 04:33:31,729 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35371124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.02 04:33:31, skipping insertion in model container [2023-02-16 04:33:31,729 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-16 04:33:31,729 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:33:31" (3/3) ... [2023-02-16 04:33:31,730 INFO L332 chiAutomizerObserver]: Analyzing ICFG PastaB14.c [2023-02-16 04:33:31,776 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-16 04:33:31,777 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-16 04:33:31,777 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-16 04:33:31,777 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-16 04:33:31,777 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-16 04:33:31,777 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-16 04:33:31,777 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-16 04:33:31,777 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-16 04:33:31,780 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2023-02-16 04:33:31,791 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-16 04:33:31,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:33:31,791 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:33:31,794 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-16 04:33:31,794 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-16 04:33:31,794 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-16 04:33:31,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2023-02-16 04:33:31,795 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-16 04:33:31,796 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:33:31,796 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:33:31,796 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-16 04:33:31,796 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-16 04:33:31,801 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L12-3true [2023-02-16 04:33:31,801 INFO L750 eck$LassoCheckResult]: Loop: 4#L12-3true assume !!(main_~x~0#1 == main_~y~0#1 && main_~x~0#1 > 0); 2#L12-2true assume !(main_~y~0#1 > 0); 4#L12-3true [2023-02-16 04:33:31,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:31,806 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-16 04:33:31,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:31,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160003514] [2023-02-16 04:33:31,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:31,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:31,865 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:31,879 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:31,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:31,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1320, now seen corresponding path program 1 times [2023-02-16 04:33:31,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:31,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469694529] [2023-02-16 04:33:31,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:31,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:31,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:31,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:33:31,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469694529] [2023-02-16 04:33:31,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469694529] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:33:31,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:33:31,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-16 04:33:31,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729454773] [2023-02-16 04:33:31,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:33:31,972 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-02-16 04:33:31,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:33:31,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:33:31,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:33:31,998 INFO L87 Difference]: Start difference. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-02-16 04:33:32,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:33:32,029 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2023-02-16 04:33:32,031 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2023-02-16 04:33:32,031 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-16 04:33:32,033 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 5 states and 6 transitions. [2023-02-16 04:33:32,034 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-16 04:33:32,034 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-16 04:33:32,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2023-02-16 04:33:32,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 04:33:32,034 INFO L218 hiAutomatonCegarLoop]: Abstraction has 5 states and 6 transitions. [2023-02-16 04:33:32,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2023-02-16 04:33:32,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2023-02-16 04:33:32,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:33:32,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2023-02-16 04:33:32,074 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5 states and 6 transitions. [2023-02-16 04:33:32,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:33:32,077 INFO L428 stractBuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2023-02-16 04:33:32,077 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-16 04:33:32,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2023-02-16 04:33:32,078 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-16 04:33:32,078 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:33:32,078 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:33:32,078 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-16 04:33:32,078 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-16 04:33:32,078 INFO L748 eck$LassoCheckResult]: Stem: 29#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 30#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 28#L12-3 [2023-02-16 04:33:32,079 INFO L750 eck$LassoCheckResult]: Loop: 28#L12-3 assume !!(main_~x~0#1 == main_~y~0#1 && main_~x~0#1 > 0); 26#L12-2 assume !!(main_~y~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1; 27#L12-2 assume !(main_~y~0#1 > 0); 28#L12-3 [2023-02-16 04:33:32,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:32,079 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-02-16 04:33:32,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:32,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986498724] [2023-02-16 04:33:32,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:32,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:32,083 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:32,093 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:32,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:32,094 INFO L85 PathProgramCache]: Analyzing trace with hash 41000, now seen corresponding path program 1 times [2023-02-16 04:33:32,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:32,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472875930] [2023-02-16 04:33:32,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:32,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:32,099 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:32,101 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:32,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:32,105 INFO L85 PathProgramCache]: Analyzing trace with hash 28699942, now seen corresponding path program 1 times [2023-02-16 04:33:32,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:32,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382559626] [2023-02-16 04:33:32,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:32,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:32,125 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:32,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:32,183 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:32,184 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:32,184 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:32,184 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:32,184 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:33:32,184 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:32,184 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:32,184 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:32,184 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration2_Loop [2023-02-16 04:33:32,184 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:32,184 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:32,195 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:32,202 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:32,205 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:32,274 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:32,274 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:33:32,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:32,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:32,305 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) [2023-02-16 04:33:32,331 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 [2023-02-16 04:33:32,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:32,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:32,363 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:33:32,363 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: [] [2023-02-16 04:33:32,383 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 [2023-02-16 04:33:32,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:32,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:32,397 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) [2023-02-16 04:33:32,399 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 [2023-02-16 04:33:32,401 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:32,401 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:32,418 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:33:32,418 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: [] [2023-02-16 04:33:32,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:32,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:32,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:32,423 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) [2023-02-16 04:33:32,424 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 [2023-02-16 04:33:32,427 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:32,427 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:32,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:32,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:32,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:32,440 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) [2023-02-16 04:33:32,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:33:32,447 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:32,447 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 [2023-02-16 04:33:32,474 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:33:32,479 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 [2023-02-16 04:33:32,479 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:32,479 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:32,479 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:32,480 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:32,480 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:33:32,480 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:32,480 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:32,480 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:32,480 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration2_Loop [2023-02-16 04:33:32,480 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:32,480 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:32,483 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:32,489 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:32,494 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:32,564 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:32,568 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:33:32,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:32,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:32,570 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) [2023-02-16 04:33:32,572 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 [2023-02-16 04:33:32,574 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 [2023-02-16 04:33:32,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:32,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:32,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:32,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:32,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:33:32,585 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:33:32,598 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:33:32,603 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 [2023-02-16 04:33:32,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:32,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:32,605 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) [2023-02-16 04:33:32,605 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 [2023-02-16 04:33:32,608 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 [2023-02-16 04:33:32,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:32,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:32,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:32,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:32,624 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:33:32,624 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:33:32,673 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:33:32,685 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 [2023-02-16 04:33:32,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:32,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:32,687 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) [2023-02-16 04:33:32,688 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 [2023-02-16 04:33:32,690 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 [2023-02-16 04:33:32,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:32,696 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:33:32,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:32,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:32,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:32,700 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:33:32,700 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:33:32,705 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:33:32,716 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:33:32,716 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-16 04:33:32,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:32,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:32,719 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) [2023-02-16 04:33:32,721 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 [2023-02-16 04:33:32,722 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:33:32,722 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:33:32,722 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:33:32,723 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-16 04:33:32,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:32,733 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:33:32,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:32,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:32,779 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:32,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:32,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:33:32,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:32,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:32,838 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-16 04:33:32,839 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:33:32,855 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 18 transitions. Complement of second has 6 states. [2023-02-16 04:33:32,856 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 [2023-02-16 04:33:32,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:33:32,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-02-16 04:33:32,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 3 letters. [2023-02-16 04:33:32,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:32,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-16 04:33:32,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:32,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 6 letters. [2023-02-16 04:33:32,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:32,859 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2023-02-16 04:33:32,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-16 04:33:32,860 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 12 transitions. [2023-02-16 04:33:32,860 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-16 04:33:32,860 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-16 04:33:32,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-02-16 04:33:32,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:33:32,861 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-16 04:33:32,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-02-16 04:33:32,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-02-16 04:33:32,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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) [2023-02-16 04:33:32,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-02-16 04:33:32,862 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-16 04:33:32,862 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-16 04:33:32,862 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-16 04:33:32,862 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-02-16 04:33:32,862 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-16 04:33:32,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:33:32,863 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:33:32,863 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2023-02-16 04:33:32,863 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-16 04:33:32,863 INFO L748 eck$LassoCheckResult]: Stem: 87#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 88#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_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 85#L12-3 assume !!(main_~x~0#1 == main_~y~0#1 && main_~x~0#1 > 0); 83#L12-2 assume !!(main_~y~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1; 84#L12-2 assume !!(main_~y~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1; 82#L12-2 [2023-02-16 04:33:32,863 INFO L750 eck$LassoCheckResult]: Loop: 82#L12-2 assume !!(main_~y~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1; 82#L12-2 [2023-02-16 04:33:32,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:32,864 INFO L85 PathProgramCache]: Analyzing trace with hash 28699944, now seen corresponding path program 1 times [2023-02-16 04:33:32,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:32,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744624901] [2023-02-16 04:33:32,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:32,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:32,869 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:32,873 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:32,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:32,873 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2023-02-16 04:33:32,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:32,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90862239] [2023-02-16 04:33:32,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:32,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:32,876 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:32,878 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:32,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:32,878 INFO L85 PathProgramCache]: Analyzing trace with hash 889698284, now seen corresponding path program 2 times [2023-02-16 04:33:32,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:32,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761382948] [2023-02-16 04:33:32,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:32,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:32,884 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:32,888 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:32,912 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:32,912 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:32,912 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:32,912 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:32,913 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:33:32,913 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:32,913 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:32,913 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:32,913 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration3_Loop [2023-02-16 04:33:32,913 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:32,913 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:32,914 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:32,916 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:32,918 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:32,922 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:32,961 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:32,961 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:33:32,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:32,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:32,974 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) [2023-02-16 04:33:33,015 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:33,016 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:33,027 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 [2023-02-16 04:33:33,036 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:33:33,036 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: [] [2023-02-16 04:33:33,055 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 [2023-02-16 04:33:33,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:33,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:33,056 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) [2023-02-16 04:33:33,085 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 [2023-02-16 04:33:33,085 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:33,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:33,104 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:33:33,104 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: [] [2023-02-16 04:33:33,107 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 [2023-02-16 04:33:33,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:33,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:33,108 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) [2023-02-16 04:33:33,110 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 [2023-02-16 04:33:33,112 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:33,112 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:33,122 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 [2023-02-16 04:33:33,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:33,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:33,123 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) [2023-02-16 04:33:33,125 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 [2023-02-16 04:33:33,126 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:33:33,126 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:33,139 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:33:33,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:33,143 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:33,143 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:33,143 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:33,143 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:33,143 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:33:33,143 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:33,143 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:33,143 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:33,143 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration3_Loop [2023-02-16 04:33:33,143 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:33,143 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:33,144 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:33,150 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:33,152 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:33,156 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:33,189 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:33,189 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:33:33,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:33,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:33,190 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) [2023-02-16 04:33:33,216 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 [2023-02-16 04:33:33,216 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 [2023-02-16 04:33:33,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:33,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:33,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:33,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:33,227 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:33:33,228 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:33:33,236 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:33:33,238 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 [2023-02-16 04:33:33,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:33,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:33,240 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) [2023-02-16 04:33:33,241 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 [2023-02-16 04:33:33,243 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 [2023-02-16 04:33:33,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:33,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:33,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:33,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:33,255 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:33:33,255 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:33:33,273 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:33:33,303 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 [2023-02-16 04:33:33,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:33,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:33,304 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) [2023-02-16 04:33:33,306 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 [2023-02-16 04:33:33,307 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 [2023-02-16 04:33:33,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:33,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:33:33,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:33,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:33,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:33,315 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:33:33,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:33:33,317 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:33:33,319 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:33:33,319 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-16 04:33:33,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:33,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:33,322 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) [2023-02-16 04:33:33,339 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:33:33,339 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:33:33,339 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:33:33,339 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 [] [2023-02-16 04:33:33,339 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 [2023-02-16 04:33:33,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-02-16 04:33:33,344 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:33:33,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:33,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:33,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:33,370 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:33:33,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:33,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:33,371 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-16 04:33:33,371 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2023-02-16 04:33:33,379 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 12 states and 16 transitions. Complement of second has 4 states. [2023-02-16 04:33:33,379 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 [2023-02-16 04:33:33,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2023-02-16 04:33:33,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-02-16 04:33:33,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 1 letters. [2023-02-16 04:33:33,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:33,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 1 letters. [2023-02-16 04:33:33,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:33,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-16 04:33:33,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:33,382 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 16 transitions. [2023-02-16 04:33:33,383 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-16 04:33:33,383 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2023-02-16 04:33:33,384 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-16 04:33:33,384 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-16 04:33:33,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-16 04:33:33,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 04:33:33,384 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:33:33,384 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:33:33,384 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:33:33,384 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-16 04:33:33,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-16 04:33:33,385 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-16 04:33:33,385 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-16 04:33:33,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.02 04:33:33 BoogieIcfgContainer [2023-02-16 04:33:33,391 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-16 04:33:33,391 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-16 04:33:33,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-16 04:33:33,392 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-16 04:33:33,392 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:33:31" (3/4) ... [2023-02-16 04:33:33,394 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-16 04:33:33,394 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-16 04:33:33,394 INFO L158 Benchmark]: Toolchain (without parser) took 2030.32ms. Allocated memory is still 155.2MB. Free memory was 115.5MB in the beginning and 87.6MB in the end (delta: 27.9MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2023-02-16 04:33:33,397 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 125.8MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:33:33,398 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.43ms. Allocated memory is still 155.2MB. Free memory was 115.3MB in the beginning and 120.5MB in the end (delta: -5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-16 04:33:33,399 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.41ms. Allocated memory is still 155.2MB. Free memory was 120.5MB in the beginning and 119.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 04:33:33,399 INFO L158 Benchmark]: Boogie Preprocessor took 10.76ms. Allocated memory is still 155.2MB. Free memory was 119.1MB in the beginning and 118.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:33:33,399 INFO L158 Benchmark]: RCFGBuilder took 157.22ms. Allocated memory is still 155.2MB. Free memory was 118.1MB in the beginning and 109.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-16 04:33:33,399 INFO L158 Benchmark]: BuchiAutomizer took 1667.11ms. Allocated memory is still 155.2MB. Free memory was 109.7MB in the beginning and 88.3MB in the end (delta: 21.4MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2023-02-16 04:33:33,404 INFO L158 Benchmark]: Witness Printer took 2.61ms. Allocated memory is still 155.2MB. Free memory was 88.3MB in the beginning and 87.6MB in the end (delta: 658.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:33:33,407 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 125.8MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 167.43ms. Allocated memory is still 155.2MB. Free memory was 115.3MB in the beginning and 120.5MB in the end (delta: -5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.41ms. Allocated memory is still 155.2MB. Free memory was 120.5MB in the beginning and 119.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 10.76ms. Allocated memory is still 155.2MB. Free memory was 119.1MB in the beginning and 118.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 157.22ms. Allocated memory is still 155.2MB. Free memory was 118.1MB in the beginning and 109.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1667.11ms. Allocated memory is still 155.2MB. Free memory was 109.7MB in the beginning and 88.3MB in the end (delta: 21.4MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * Witness Printer took 2.61ms. Allocated memory is still 155.2MB. Free memory was 88.3MB in the beginning and 87.6MB in the end (delta: 658.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 15 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax167 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf92 smp92 dnf100 smp100 tf110 neg98 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-16 04:33:33,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-02-16 04:33:33,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:33,822 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