./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 26d01a9c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.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 07aee1a213388f511be96198bfb1df3a8f6aa54d1d332dfab8fc2fdcd2220999 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-17 04:13:00,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 04:13:00,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 04:13:00,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 04:13:00,957 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 04:13:00,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 04:13:00,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 04:13:00,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 04:13:00,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 04:13:00,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 04:13:00,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 04:13:00,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 04:13:00,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 04:13:00,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 04:13:00,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 04:13:00,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 04:13:00,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 04:13:00,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 04:13:00,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 04:13:00,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 04:13:00,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 04:13:00,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 04:13:00,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 04:13:01,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 04:13:01,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 04:13:01,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 04:13:01,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 04:13:01,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 04:13:01,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 04:13:01,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 04:13:01,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 04:13:01,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 04:13:01,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 04:13:01,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 04:13:01,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 04:13:01,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 04:13:01,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 04:13:01,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 04:13:01,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 04:13:01,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 04:13:01,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 04:13:01,020 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-17 04:13:01,053 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 04:13:01,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 04:13:01,054 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 04:13:01,054 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 04:13:01,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 04:13:01,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 04:13:01,055 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 04:13:01,056 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-17 04:13:01,056 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-17 04:13:01,056 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-17 04:13:01,060 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-17 04:13:01,061 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-17 04:13:01,061 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-17 04:13:01,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 04:13:01,061 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 04:13:01,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 04:13:01,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 04:13:01,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-17 04:13:01,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-17 04:13:01,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-17 04:13:01,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 04:13:01,063 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-17 04:13:01,063 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 04:13:01,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-17 04:13:01,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 04:13:01,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 04:13:01,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 04:13:01,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 04:13:01,066 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-17 04:13:01,066 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07aee1a213388f511be96198bfb1df3a8f6aa54d1d332dfab8fc2fdcd2220999 [2023-02-17 04:13:01,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 04:13:01,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 04:13:01,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 04:13:01,345 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 04:13:01,346 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 04:13:01,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c [2023-02-17 04:13:02,633 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 04:13:02,821 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 04:13:02,821 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c [2023-02-17 04:13:02,826 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8c67de25/9ac6e6e437be45e18355949b7c9819f3/FLAG184e81de3 [2023-02-17 04:13:02,844 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8c67de25/9ac6e6e437be45e18355949b7c9819f3 [2023-02-17 04:13:02,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 04:13:02,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 04:13:02,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 04:13:02,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 04:13:02,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 04:13:02,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 04:13:02" (1/1) ... [2023-02-17 04:13:02,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31fbab5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:13:02, skipping insertion in model container [2023-02-17 04:13:02,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 04:13:02" (1/1) ... [2023-02-17 04:13:02,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 04:13:02,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 04:13:03,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 04:13:03,012 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 04:13:03,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 04:13:03,037 INFO L208 MainTranslator]: Completed translation [2023-02-17 04:13:03,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:13:03 WrapperNode [2023-02-17 04:13:03,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 04:13:03,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 04:13:03,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 04:13:03,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 04:13:03,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:13:03" (1/1) ... [2023-02-17 04:13:03,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:13:03" (1/1) ... [2023-02-17 04:13:03,087 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2023-02-17 04:13:03,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 04:13:03,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 04:13:03,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 04:13:03,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 04:13:03,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:13:03" (1/1) ... [2023-02-17 04:13:03,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:13:03" (1/1) ... [2023-02-17 04:13:03,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:13:03" (1/1) ... [2023-02-17 04:13:03,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:13:03" (1/1) ... [2023-02-17 04:13:03,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:13:03" (1/1) ... [2023-02-17 04:13:03,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:13:03" (1/1) ... [2023-02-17 04:13:03,099 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:13:03" (1/1) ... [2023-02-17 04:13:03,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:13:03" (1/1) ... [2023-02-17 04:13:03,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 04:13:03,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 04:13:03,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 04:13:03,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 04:13:03,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:13:03" (1/1) ... [2023-02-17 04:13:03,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:03,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:03,137 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) [2023-02-17 04:13:03,140 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 [2023-02-17 04:13:03,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 04:13:03,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 04:13:03,231 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 04:13:03,233 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 04:13:03,318 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 04:13:03,324 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 04:13:03,324 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 04:13:03,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 04:13:03 BoogieIcfgContainer [2023-02-17 04:13:03,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 04:13:03,328 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-17 04:13:03,328 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-17 04:13:03,332 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-17 04:13:03,332 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 04:13:03,333 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.02 04:13:02" (1/3) ... [2023-02-17 04:13:03,333 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65c5fb4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 04:13:03, skipping insertion in model container [2023-02-17 04:13:03,334 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 04:13:03,334 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:13:03" (2/3) ... [2023-02-17 04:13:03,334 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65c5fb4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 04:13:03, skipping insertion in model container [2023-02-17 04:13:03,334 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 04:13:03,335 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 04:13:03" (3/3) ... [2023-02-17 04:13:03,336 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c [2023-02-17 04:13:03,388 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-17 04:13:03,388 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-17 04:13:03,388 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-17 04:13:03,388 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-17 04:13:03,389 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-17 04:13:03,389 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-17 04:13:03,389 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-17 04:13:03,389 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-17 04:13:03,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2023-02-17 04:13:03,404 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-17 04:13:03,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 04:13:03,404 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 04:13:03,409 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-17 04:13:03,409 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-17 04:13:03,409 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-17 04:13:03,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2023-02-17 04:13:03,410 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-17 04:13:03,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 04:13:03,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 04:13:03,411 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-17 04:13:03,411 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-17 04:13:03,416 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~m~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~m~0#1;havoc main_~n~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3#L17true assume main_~m~0#1 > 0 && main_~n~0#1 > main_~m~0#1;main_~i~0#1 := main_~n~0#1; 5#L20-2true [2023-02-17 04:13:03,417 INFO L750 eck$LassoCheckResult]: Loop: 5#L20-2true assume !!(main_~i~0#1 > 0); 9#L20true assume main_~i~0#1 < main_~m~0#1;main_~i~0#1 := main_~i~0#1 - 1; 5#L20-2true [2023-02-17 04:13:03,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:13:03,422 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-02-17 04:13:03,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:13:03,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424504527] [2023-02-17 04:13:03,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:13:03,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:13:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:03,493 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:13:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:03,526 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:13:03,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:13:03,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 1 times [2023-02-17 04:13:03,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:13:03,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001320975] [2023-02-17 04:13:03,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:13:03,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:13:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:03,535 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:13:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:03,540 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:13:03,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:13:03,541 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2023-02-17 04:13:03,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:13:03,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917954791] [2023-02-17 04:13:03,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:13:03,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:13:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:13:03,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:13:03,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 04:13:03,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917954791] [2023-02-17 04:13:03,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917954791] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 04:13:03,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 04:13:03,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 04:13:03,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588600550] [2023-02-17 04:13:03,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 04:13:03,654 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 04:13:03,655 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 04:13:03,655 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 04:13:03,655 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 04:13:03,655 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-17 04:13:03,655 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:03,655 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 04:13:03,656 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 04:13:03,656 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration1_Loop [2023-02-17 04:13:03,656 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 04:13:03,656 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 04:13:03,671 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:03,679 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:03,680 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:03,691 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 04:13:03,691 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-17 04:13:03,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:03,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:03,696 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) [2023-02-17 04:13:03,697 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 [2023-02-17 04:13:03,699 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:13:03,699 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:13:03,719 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 04:13:03,719 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: [] [2023-02-17 04:13:03,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-02-17 04:13:03,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:03,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:03,728 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) [2023-02-17 04:13:03,731 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 [2023-02-17 04:13:03,733 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:13:03,733 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:13:03,761 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 04:13:03,761 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: [] [2023-02-17 04:13:03,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-02-17 04:13:03,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:03,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:03,771 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) [2023-02-17 04:13:03,778 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:13:03,778 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:13:03,789 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 [2023-02-17 04:13:03,805 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 [2023-02-17 04:13:03,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:03,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:03,807 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) [2023-02-17 04:13:03,817 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-17 04:13:03,818 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:13:03,848 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 [2023-02-17 04:13:03,864 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-17 04:13:03,869 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 [2023-02-17 04:13:03,869 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 04:13:03,870 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 04:13:03,870 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 04:13:03,870 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 04:13:03,870 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-17 04:13:03,870 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:03,870 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 04:13:03,870 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 04:13:03,870 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration1_Loop [2023-02-17 04:13:03,870 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 04:13:03,870 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 04:13:03,872 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:03,874 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:03,876 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:03,883 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 04:13:03,887 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-17 04:13:03,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:03,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:03,889 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) [2023-02-17 04:13:03,892 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 [2023-02-17 04:13:03,894 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 [2023-02-17 04:13:03,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:13:03,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:13:03,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:13:03,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:13:03,907 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-17 04:13:03,907 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-17 04:13:03,933 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 04:13:03,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-17 04:13:03,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:03,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:03,946 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) [2023-02-17 04:13:03,949 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 [2023-02-17 04:13:03,951 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 [2023-02-17 04:13:03,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:13:03,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:13:03,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:13:03,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:13:03,965 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-17 04:13:03,965 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-17 04:13:03,981 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 04:13:03,985 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 [2023-02-17 04:13:03,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:03,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:03,986 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) [2023-02-17 04:13:03,988 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 [2023-02-17 04:13:03,989 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 [2023-02-17 04:13:03,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:13:03,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 04:13:03,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:13:03,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:13:03,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:13:03,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 04:13:03,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 04:13:04,016 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-17 04:13:04,020 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-17 04:13:04,020 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-17 04:13:04,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:04,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:04,022 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) [2023-02-17 04:13:04,024 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 [2023-02-17 04:13:04,025 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-17 04:13:04,025 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-17 04:13:04,025 INFO L513 LassoAnalysis]: Proved termination. [2023-02-17 04:13:04,026 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-02-17 04:13:04,029 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 [2023-02-17 04:13:04,031 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-17 04:13:04,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:13:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:13:04,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-17 04:13:04,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:13:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:13:04,073 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 04:13:04,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:13:04,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:13:04,132 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-17 04:13:04,134 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2023-02-17 04:13:04,149 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 [2023-02-17 04:13:04,185 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 29 states and 36 transitions. Complement of second has 8 states. [2023-02-17 04:13:04,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-17 04:13:04,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2023-02-17 04:13:04,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2023-02-17 04:13:04,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-17 04:13:04,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:13:04,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-17 04:13:04,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:13:04,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 3 letters. Loop has 4 letters. [2023-02-17 04:13:04,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:13:04,202 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2023-02-17 04:13:04,205 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-17 04:13:04,208 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 9 states and 12 transitions. [2023-02-17 04:13:04,208 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-17 04:13:04,209 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-17 04:13:04,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-02-17 04:13:04,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-17 04:13:04,209 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-17 04:13:04,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-02-17 04:13:04,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-02-17 04:13:04,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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) [2023-02-17 04:13:04,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2023-02-17 04:13:04,230 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-17 04:13:04,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 04:13:04,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 04:13:04,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 04:13:04,233 INFO L87 Difference]: Start difference. First operand 9 states and 12 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-02-17 04:13:04,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 04:13:04,251 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2023-02-17 04:13:04,251 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2023-02-17 04:13:04,251 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-17 04:13:04,252 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 7 states and 8 transitions. [2023-02-17 04:13:04,252 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-17 04:13:04,252 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-17 04:13:04,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2023-02-17 04:13:04,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-17 04:13:04,253 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2023-02-17 04:13:04,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2023-02-17 04:13:04,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2023-02-17 04:13:04,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:13:04,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2023-02-17 04:13:04,256 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2023-02-17 04:13:04,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 04:13:04,258 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2023-02-17 04:13:04,261 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-17 04:13:04,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2023-02-17 04:13:04,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-17 04:13:04,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 04:13:04,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 04:13:04,263 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-17 04:13:04,263 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-17 04:13:04,263 INFO L748 eck$LassoCheckResult]: Stem: 102#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 103#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_~i~0#1, main_~m~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~m~0#1;havoc main_~n~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 98#L17 assume main_~m~0#1 > 0 && main_~n~0#1 > main_~m~0#1;main_~i~0#1 := main_~n~0#1; 99#L20-2 assume !!(main_~i~0#1 > 0); 104#L20 assume !(main_~i~0#1 < main_~m~0#1);main_~i~0#1 := main_~i~0#1 - main_~m~0#1; 100#L20-2 [2023-02-17 04:13:04,263 INFO L750 eck$LassoCheckResult]: Loop: 100#L20-2 assume !!(main_~i~0#1 > 0); 101#L20 assume main_~i~0#1 < main_~m~0#1;main_~i~0#1 := main_~i~0#1 - 1; 100#L20-2 [2023-02-17 04:13:04,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:13:04,264 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 1 times [2023-02-17 04:13:04,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:13:04,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616098899] [2023-02-17 04:13:04,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:13:04,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:13:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:04,271 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:13:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:04,277 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:13:04,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:13:04,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 2 times [2023-02-17 04:13:04,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:13:04,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333421614] [2023-02-17 04:13:04,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:13:04,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:13:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:04,282 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:13:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:04,285 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:13:04,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:13:04,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122026, now seen corresponding path program 1 times [2023-02-17 04:13:04,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:13:04,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936988174] [2023-02-17 04:13:04,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:13:04,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:13:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:04,292 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:13:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:04,298 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:13:04,300 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 04:13:04,300 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 04:13:04,300 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 04:13:04,301 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 04:13:04,301 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-17 04:13:04,301 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:04,301 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 04:13:04,301 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 04:13:04,301 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration2_Loop [2023-02-17 04:13:04,301 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 04:13:04,301 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 04:13:04,303 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:04,304 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:04,305 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:04,308 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 04:13:04,308 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-17 04:13:04,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:04,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:04,310 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) [2023-02-17 04:13:04,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:13:04,325 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:13:04,337 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 [2023-02-17 04:13:04,348 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 04:13:04,348 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: [] [2023-02-17 04:13:04,353 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 [2023-02-17 04:13:04,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:04,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:04,355 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) [2023-02-17 04:13:04,361 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 [2023-02-17 04:13:04,361 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:13:04,361 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:13:04,383 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 [2023-02-17 04:13:04,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:04,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:04,385 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) [2023-02-17 04:13:04,387 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 [2023-02-17 04:13:04,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-17 04:13:04,389 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:13:04,425 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-17 04:13:04,431 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 [2023-02-17 04:13:04,432 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 04:13:04,432 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 04:13:04,432 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 04:13:04,432 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 04:13:04,432 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-17 04:13:04,432 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:04,432 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 04:13:04,432 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 04:13:04,432 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration2_Loop [2023-02-17 04:13:04,432 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 04:13:04,432 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 04:13:04,434 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:04,435 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:04,437 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:04,440 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 04:13:04,440 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-17 04:13:04,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:04,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:04,442 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) [2023-02-17 04:13:04,444 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 [2023-02-17 04:13:04,475 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 [2023-02-17 04:13:04,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:13:04,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:13:04,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:13:04,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:13:04,485 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-17 04:13:04,485 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-17 04:13:04,497 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 04:13:04,504 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 [2023-02-17 04:13:04,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:04,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:04,505 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) [2023-02-17 04:13:04,511 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 [2023-02-17 04:13:04,511 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 [2023-02-17 04:13:04,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:13:04,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 04:13:04,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:13:04,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:13:04,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:13:04,520 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 04:13:04,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 04:13:04,524 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-17 04:13:04,533 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-17 04:13:04,533 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-17 04:13:04,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:04,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:04,535 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) [2023-02-17 04:13:04,539 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-17 04:13:04,539 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-17 04:13:04,539 INFO L513 LassoAnalysis]: Proved termination. [2023-02-17 04:13:04,540 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-02-17 04:13:04,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-17 04:13:04,548 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-17 04:13:04,549 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 [2023-02-17 04:13:04,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:13:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:13:04,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-17 04:13:04,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:13:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:13:04,570 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 04:13:04,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:13:04,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:13:04,576 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-17 04:13:04,576 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-02-17 04:13:04,587 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 11 states and 14 transitions. Complement of second has 5 states. [2023-02-17 04:13:04,587 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 [2023-02-17 04:13:04,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-02-17 04:13:04,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-17 04:13:04,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-17 04:13:04,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:13:04,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2023-02-17 04:13:04,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:13:04,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2023-02-17 04:13:04,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:13:04,590 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2023-02-17 04:13:04,593 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-17 04:13:04,594 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 14 transitions. [2023-02-17 04:13:04,594 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-17 04:13:04,594 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-17 04:13:04,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2023-02-17 04:13:04,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-17 04:13:04,594 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-02-17 04:13:04,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2023-02-17 04:13:04,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-02-17 04:13:04,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:13:04,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2023-02-17 04:13:04,597 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-02-17 04:13:04,597 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-02-17 04:13:04,597 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-17 04:13:04,597 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2023-02-17 04:13:04,600 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-17 04:13:04,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 04:13:04,600 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 04:13:04,601 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2023-02-17 04:13:04,601 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-17 04:13:04,601 INFO L748 eck$LassoCheckResult]: Stem: 164#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 165#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~m~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~m~0#1;havoc main_~n~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 157#L17 assume main_~m~0#1 > 0 && main_~n~0#1 > main_~m~0#1;main_~i~0#1 := main_~n~0#1; 158#L20-2 assume !!(main_~i~0#1 > 0); 167#L20 assume !(main_~i~0#1 < main_~m~0#1);main_~i~0#1 := main_~i~0#1 - main_~m~0#1; 166#L20-2 assume !!(main_~i~0#1 > 0); 163#L20 assume !(main_~i~0#1 < main_~m~0#1);main_~i~0#1 := main_~i~0#1 - main_~m~0#1; 159#L20-2 [2023-02-17 04:13:04,601 INFO L750 eck$LassoCheckResult]: Loop: 159#L20-2 assume !!(main_~i~0#1 > 0); 160#L20 assume main_~i~0#1 < main_~m~0#1;main_~i~0#1 := main_~i~0#1 - 1; 159#L20-2 [2023-02-17 04:13:04,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:13:04,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122028, now seen corresponding path program 2 times [2023-02-17 04:13:04,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:13:04,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111611132] [2023-02-17 04:13:04,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:13:04,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:13:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:04,615 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:13:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:04,620 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:13:04,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:13:04,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 3 times [2023-02-17 04:13:04,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:13:04,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571760385] [2023-02-17 04:13:04,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:13:04,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:13:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:04,625 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:13:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:04,627 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:13:04,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:13:04,629 INFO L85 PathProgramCache]: Analyzing trace with hash -444518225, now seen corresponding path program 2 times [2023-02-17 04:13:04,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:13:04,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953509812] [2023-02-17 04:13:04,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:13:04,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:13:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:04,643 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:13:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:04,650 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:13:04,651 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 04:13:04,652 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 04:13:04,652 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 04:13:04,652 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 04:13:04,652 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-17 04:13:04,652 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:04,652 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 04:13:04,652 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 04:13:04,652 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration3_Loop [2023-02-17 04:13:04,653 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 04:13:04,653 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 04:13:04,654 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:04,655 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:04,656 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:04,659 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 04:13:04,659 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-17 04:13:04,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:04,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:04,661 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) [2023-02-17 04:13:04,663 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 [2023-02-17 04:13:04,665 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:13:04,666 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:13:04,682 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 04:13:04,682 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 04:13:04,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-02-17 04:13:04,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:04,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:04,688 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) [2023-02-17 04:13:04,690 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 [2023-02-17 04:13:04,692 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:13:04,692 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:13:04,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-02-17 04:13:04,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:04,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:04,704 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:13:04,709 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-17 04:13:04,709 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:13:04,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-17 04:13:04,725 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-17 04:13:04,729 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-02-17 04:13:04,729 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 04:13:04,729 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 04:13:04,729 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 04:13:04,729 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 04:13:04,729 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-17 04:13:04,729 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:04,729 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 04:13:04,729 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 04:13:04,729 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration3_Loop [2023-02-17 04:13:04,729 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 04:13:04,729 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 04:13:04,731 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:04,732 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:04,733 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:04,736 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 04:13:04,736 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-17 04:13:04,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:04,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:04,737 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:13:04,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-17 04:13:04,745 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 [2023-02-17 04:13:04,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:13:04,752 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 04:13:04,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:13:04,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:13:04,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:13:04,753 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 04:13:04,753 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 04:13:04,768 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-17 04:13:04,770 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-17 04:13:04,771 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-17 04:13:04,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:04,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:04,781 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:13:04,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-17 04:13:04,796 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-17 04:13:04,796 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-17 04:13:04,796 INFO L513 LassoAnalysis]: Proved termination. [2023-02-17 04:13:04,796 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-02-17 04:13:04,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-02-17 04:13:04,805 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-17 04:13:04,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:13:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:13:04,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-17 04:13:04,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:13:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:13:04,838 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 04:13:04,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:13:04,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:13:04,848 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-17 04:13:04,848 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:13:04,860 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 18 transitions. Complement of second has 5 states. [2023-02-17 04:13:04,860 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 [2023-02-17 04:13:04,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:13:04,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-17 04:13:04,863 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2023-02-17 04:13:04,864 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:13:04,864 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-17 04:13:04,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:13:04,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:13:04,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-17 04:13:04,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:13:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:13:04,894 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 04:13:04,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:13:04,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:13:04,902 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-17 04:13:04,902 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:13:04,919 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 18 transitions. Complement of second has 5 states. [2023-02-17 04:13:04,919 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 [2023-02-17 04:13:04,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:13:04,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-17 04:13:04,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2023-02-17 04:13:04,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:13:04,920 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-17 04:13:04,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:13:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:13:04,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-17 04:13:04,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:13:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:13:04,939 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 04:13:04,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:13:04,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:13:04,945 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-17 04:13:04,945 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:13:04,953 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 21 transitions. Complement of second has 4 states. [2023-02-17 04:13:04,953 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 [2023-02-17 04:13:04,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:13:04,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-02-17 04:13:04,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2023-02-17 04:13:04,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:13:04,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2023-02-17 04:13:04,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:13:04,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2023-02-17 04:13:04,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:13:04,955 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 21 transitions. [2023-02-17 04:13:04,956 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-17 04:13:04,956 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 17 transitions. [2023-02-17 04:13:04,956 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-17 04:13:04,956 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-17 04:13:04,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2023-02-17 04:13:04,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-17 04:13:04,957 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-02-17 04:13:04,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2023-02-17 04:13:04,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 8. [2023-02-17 04:13:04,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:13:04,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2023-02-17 04:13:04,958 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-02-17 04:13:04,958 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-02-17 04:13:04,958 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-17 04:13:04,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2023-02-17 04:13:04,958 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-17 04:13:04,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 04:13:04,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 04:13:04,959 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-17 04:13:04,959 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-17 04:13:04,959 INFO L748 eck$LassoCheckResult]: Stem: 324#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 325#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_~i~0#1, main_~m~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~m~0#1;havoc main_~n~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 319#L17 assume main_~m~0#1 > 0 && main_~n~0#1 > main_~m~0#1;main_~i~0#1 := main_~n~0#1; 320#L20-2 assume !!(main_~i~0#1 > 0); 321#L20 [2023-02-17 04:13:04,959 INFO L750 eck$LassoCheckResult]: Loop: 321#L20 assume !(main_~i~0#1 < main_~m~0#1);main_~i~0#1 := main_~i~0#1 - main_~m~0#1; 326#L20-2 assume !!(main_~i~0#1 > 0); 321#L20 [2023-02-17 04:13:04,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:13:04,959 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2023-02-17 04:13:04,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:13:04,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455288657] [2023-02-17 04:13:04,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:13:04,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:13:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:04,965 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:13:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:04,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:13:04,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:13:04,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 1 times [2023-02-17 04:13:04,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:13:04,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176366658] [2023-02-17 04:13:04,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:13:04,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:13:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:04,974 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:13:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:04,976 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:13:04,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:13:04,977 INFO L85 PathProgramCache]: Analyzing trace with hash 889513735, now seen corresponding path program 3 times [2023-02-17 04:13:04,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:13:04,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013186743] [2023-02-17 04:13:04,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:13:04,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:13:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:04,981 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:13:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:13:04,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:13:04,994 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 04:13:04,995 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 04:13:04,995 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 04:13:04,995 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 04:13:04,995 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-17 04:13:04,995 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:04,995 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 04:13:04,995 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 04:13:04,995 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration4_Lasso [2023-02-17 04:13:04,995 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 04:13:04,995 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 04:13:04,998 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:05,010 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:05,011 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:05,014 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:05,015 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:05,016 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:05,029 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 [2023-02-17 04:13:05,031 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 04:13:05,031 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-17 04:13:05,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:05,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:05,033 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:13:05,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-02-17 04:13:05,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-17 04:13:05,049 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:13:05,050 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:13:05,081 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 04:13:05,081 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 04:13:05,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-02-17 04:13:05,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:05,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:05,093 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:13:05,101 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:13:05,102 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:13:05,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-17 04:13:05,121 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 04:13:05,121 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 04:13:05,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-02-17 04:13:05,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:05,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:05,130 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:13:05,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-17 04:13:05,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:13:05,159 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:13:05,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-02-17 04:13:05,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:05,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:05,202 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:13:05,212 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-17 04:13:05,212 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:13:05,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-02-17 04:13:05,327 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-17 04:13:05,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-02-17 04:13:05,331 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 04:13:05,332 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 04:13:05,332 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 04:13:05,332 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 04:13:05,332 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-17 04:13:05,332 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:05,332 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 04:13:05,332 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 04:13:05,332 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration4_Lasso [2023-02-17 04:13:05,332 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 04:13:05,332 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 04:13:05,333 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:05,335 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:05,336 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:05,337 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:05,339 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:05,339 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:13:05,343 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 04:13:05,343 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-17 04:13:05,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:05,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:05,344 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:13:05,349 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 [2023-02-17 04:13:05,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:13:05,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:13:05,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:13:05,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:13:05,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-17 04:13:05,359 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-17 04:13:05,360 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-17 04:13:05,374 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 04:13:05,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-02-17 04:13:05,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:05,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:05,382 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:13:05,389 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 [2023-02-17 04:13:05,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:13:05,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 04:13:05,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:13:05,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:13:05,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:13:05,398 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 04:13:05,398 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 04:13:05,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-17 04:13:05,417 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 04:13:05,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-02-17 04:13:05,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:05,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:05,426 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:13:05,433 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 [2023-02-17 04:13:05,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:13:05,441 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 04:13:05,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:13:05,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:13:05,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:13:05,442 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 04:13:05,442 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 04:13:05,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-02-17 04:13:05,453 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 04:13:05,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-02-17 04:13:05,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:05,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:05,460 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:13:05,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-02-17 04:13:05,464 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 [2023-02-17 04:13:05,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:13:05,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:13:05,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:13:05,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:13:05,478 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-17 04:13:05,479 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-17 04:13:05,501 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-17 04:13:05,513 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-02-17 04:13:05,513 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-02-17 04:13:05,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:13:05,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:13:05,515 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:13:05,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-02-17 04:13:05,519 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-17 04:13:05,550 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-02-17 04:13:05,550 INFO L513 LassoAnalysis]: Proved termination. [2023-02-17 04:13:05,551 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [1*ULTIMATE.start_main_~m~0#1 - 1 >= 0] [2023-02-17 04:13:05,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-02-17 04:13:05,560 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-02-17 04:13:05,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:13:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:13:05,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-17 04:13:05,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:13:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:13:05,594 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-17 04:13:05,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:13:05,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:13:05,624 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2023-02-17 04:13:05,624 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:13:05,641 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 17 transitions. Complement of second has 5 states. [2023-02-17 04:13:05,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-17 04:13:05,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:13:05,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-02-17 04:13:05,642 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-17 04:13:05,642 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:13:05,643 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-17 04:13:05,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:13:05,643 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 4 letters. Loop has 4 letters. [2023-02-17 04:13:05,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:13:05,643 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2023-02-17 04:13:05,643 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-17 04:13:05,644 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2023-02-17 04:13:05,644 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-17 04:13:05,644 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-17 04:13:05,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-17 04:13:05,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-17 04:13:05,644 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 04:13:05,644 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 04:13:05,644 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 04:13:05,644 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-17 04:13:05,644 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-17 04:13:05,644 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-17 04:13:05,645 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-17 04:13:05,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 04:13:05 BoogieIcfgContainer [2023-02-17 04:13:05,653 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-17 04:13:05,654 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 04:13:05,654 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 04:13:05,654 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 04:13:05,655 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 04:13:03" (3/4) ... [2023-02-17 04:13:05,657 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-17 04:13:05,658 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 04:13:05,659 INFO L158 Benchmark]: Toolchain (without parser) took 2810.45ms. Allocated memory is still 125.8MB. Free memory was 66.8MB in the beginning and 70.9MB in the end (delta: -4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 04:13:05,660 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 98.6MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 04:13:05,660 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.75ms. Allocated memory is still 125.8MB. Free memory was 66.6MB in the beginning and 57.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-17 04:13:05,660 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.35ms. Allocated memory is still 125.8MB. Free memory was 57.6MB in the beginning and 97.4MB in the end (delta: -39.8MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2023-02-17 04:13:05,660 INFO L158 Benchmark]: Boogie Preprocessor took 12.53ms. Allocated memory is still 125.8MB. Free memory was 97.4MB in the beginning and 96.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 04:13:05,661 INFO L158 Benchmark]: RCFGBuilder took 224.88ms. Allocated memory is still 125.8MB. Free memory was 96.3MB in the beginning and 88.3MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-02-17 04:13:05,661 INFO L158 Benchmark]: BuchiAutomizer took 2325.24ms. Allocated memory is still 125.8MB. Free memory was 87.9MB in the beginning and 71.7MB in the end (delta: 16.2MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2023-02-17 04:13:05,661 INFO L158 Benchmark]: Witness Printer took 3.64ms. Allocated memory is still 125.8MB. Free memory was 71.7MB in the beginning and 70.9MB in the end (delta: 778.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 04:13:05,664 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 98.6MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 185.75ms. Allocated memory is still 125.8MB. Free memory was 66.6MB in the beginning and 57.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.35ms. Allocated memory is still 125.8MB. Free memory was 57.6MB in the beginning and 97.4MB in the end (delta: -39.8MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.53ms. Allocated memory is still 125.8MB. Free memory was 97.4MB in the beginning and 96.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 224.88ms. Allocated memory is still 125.8MB. Free memory was 96.3MB in the beginning and 88.3MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 2325.24ms. Allocated memory is still 125.8MB. Free memory was 87.9MB in the beginning and 71.7MB in the end (delta: 16.2MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * Witness Printer took 3.64ms. Allocated memory is still 125.8MB. Free memory was 71.7MB in the beginning and 70.9MB in the end (delta: 778.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function i and consists of 3 locations. One deterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function i 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 2.2s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 39 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax180 hnf100 lsp56 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq144 hnf94 smp100 dnf100 smp100 tf108 neg99 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 45ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-17 04:13:05,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-02-17 04:13:05,881 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