./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7e1ff0e6 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-wise.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 024b54dcc71a4cff37fb88a3019598a20adbf40036f66c2a7f758cfecaaffadc --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 02:22:52,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 02:22:52,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 02:22:52,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 02:22:52,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 02:22:52,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 02:22:52,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 02:22:52,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 02:22:52,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 02:22:52,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 02:22:52,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 02:22:52,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 02:22:52,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 02:22:52,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 02:22:52,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 02:22:52,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 02:22:52,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 02:22:52,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 02:22:52,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 02:22:52,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 02:22:52,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 02:22:52,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 02:22:52,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 02:22:52,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 02:22:52,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 02:22:52,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 02:22:52,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 02:22:52,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 02:22:52,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 02:22:52,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 02:22:52,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 02:22:52,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 02:22:52,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 02:22:52,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 02:22:52,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 02:22:52,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 02:22:52,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 02:22:52,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 02:22:52,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 02:22:52,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 02:22:52,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 02:22:52,514 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-15 02:22:52,539 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 02:22:52,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 02:22:52,539 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 02:22:52,539 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 02:22:52,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 02:22:52,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 02:22:52,541 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 02:22:52,541 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-15 02:22:52,541 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-15 02:22:52,541 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-15 02:22:52,542 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-15 02:22:52,542 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-15 02:22:52,542 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-15 02:22:52,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 02:22:52,542 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 02:22:52,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 02:22:52,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 02:22:52,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-15 02:22:52,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-15 02:22:52,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-15 02:22:52,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 02:22:52,543 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-15 02:22:52,543 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 02:22:52,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-15 02:22:52,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 02:22:52,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 02:22:52,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 02:22:52,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 02:22:52,545 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-15 02:22:52,546 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 024b54dcc71a4cff37fb88a3019598a20adbf40036f66c2a7f758cfecaaffadc [2023-02-15 02:22:52,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 02:22:52,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 02:22:52,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 02:22:52,785 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 02:22:52,786 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 02:22:52,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c [2023-02-15 02:22:53,894 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 02:22:54,093 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 02:22:54,094 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c [2023-02-15 02:22:54,098 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/609ba94bf/3bc4edee149a47a8a6caa9dad40e4166/FLAGd266c185c [2023-02-15 02:22:54,111 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/609ba94bf/3bc4edee149a47a8a6caa9dad40e4166 [2023-02-15 02:22:54,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 02:22:54,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 02:22:54,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 02:22:54,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 02:22:54,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 02:22:54,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:22:54" (1/1) ... [2023-02-15 02:22:54,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@525dc9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:54, skipping insertion in model container [2023-02-15 02:22:54,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:22:54" (1/1) ... [2023-02-15 02:22:54,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 02:22:54,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 02:22:54,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:22:54,256 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 02:22:54,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:22:54,274 INFO L208 MainTranslator]: Completed translation [2023-02-15 02:22:54,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:54 WrapperNode [2023-02-15 02:22:54,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 02:22:54,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 02:22:54,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 02:22:54,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 02:22:54,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:54" (1/1) ... [2023-02-15 02:22:54,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:54" (1/1) ... [2023-02-15 02:22:54,297 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2023-02-15 02:22:54,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 02:22:54,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 02:22:54,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 02:22:54,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 02:22:54,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:54" (1/1) ... [2023-02-15 02:22:54,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:54" (1/1) ... [2023-02-15 02:22:54,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:54" (1/1) ... [2023-02-15 02:22:54,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:54" (1/1) ... [2023-02-15 02:22:54,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:54" (1/1) ... [2023-02-15 02:22:54,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:54" (1/1) ... [2023-02-15 02:22:54,310 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:54" (1/1) ... [2023-02-15 02:22:54,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:54" (1/1) ... [2023-02-15 02:22:54,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 02:22:54,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 02:22:54,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 02:22:54,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 02:22:54,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:54" (1/1) ... [2023-02-15 02:22:54,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:54,355 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) [2023-02-15 02:22:54,417 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 [2023-02-15 02:22:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 02:22:54,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 02:22:54,489 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 02:22:54,491 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 02:22:54,569 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 02:22:54,577 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 02:22:54,577 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 02:22:54,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:22:54 BoogieIcfgContainer [2023-02-15 02:22:54,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 02:22:54,580 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-15 02:22:54,580 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-15 02:22:54,582 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-15 02:22:54,583 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 02:22:54,583 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.02 02:22:54" (1/3) ... [2023-02-15 02:22:54,583 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@778231b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:22:54, skipping insertion in model container [2023-02-15 02:22:54,584 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 02:22:54,584 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:54" (2/3) ... [2023-02-15 02:22:54,584 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@778231b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:22:54, skipping insertion in model container [2023-02-15 02:22:54,584 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 02:22:54,584 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:22:54" (3/3) ... [2023-02-15 02:22:54,585 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wise.c [2023-02-15 02:22:54,636 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-15 02:22:54,636 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-15 02:22:54,636 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-15 02:22:54,637 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-15 02:22:54,637 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-15 02:22:54,637 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-15 02:22:54,637 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-15 02:22:54,637 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-15 02:22:54,640 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) [2023-02-15 02:22:54,650 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 02:22:54,651 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 02:22:54,651 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 02:22:54,654 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-15 02:22:54,654 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-15 02:22:54,655 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-15 02:22:54,655 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) [2023-02-15 02:22:54,656 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 02:22:54,656 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 02:22:54,656 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 02:22:54,656 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-15 02:22:54,656 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-15 02:22:54,662 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L17true assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 2#L19-2true [2023-02-15 02:22:54,662 INFO L750 eck$LassoCheckResult]: Loop: 2#L19-2true assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 9#L19true assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := 1 + main_~x~0#1; 2#L19-2true [2023-02-15 02:22:54,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:54,667 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-02-15 02:22:54,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:54,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843523915] [2023-02-15 02:22:54,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:54,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:54,736 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:54,756 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:54,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:54,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 1 times [2023-02-15 02:22:54,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:54,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242809549] [2023-02-15 02:22:54,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:54,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:54,781 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:54,791 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:54,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:54,792 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2023-02-15 02:22:54,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:54,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598163594] [2023-02-15 02:22:54,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:54,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:54,805 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:54,813 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:54,876 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:54,877 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:54,877 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:54,877 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:54,877 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 02:22:54,877 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,878 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:54,878 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:54,878 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration1_Loop [2023-02-15 02:22:54,878 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:54,878 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:54,889 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,897 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,901 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,954 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:54,954 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 02:22:54,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:54,993 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) [2023-02-15 02:22:54,997 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:54,997 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:55,002 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 [2023-02-15 02:22:55,017 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:22:55,018 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: [] [2023-02-15 02:22:55,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:55,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:55,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:55,022 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) [2023-02-15 02:22:55,024 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 [2023-02-15 02:22:55,026 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:55,027 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:55,048 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:22:55,048 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: [] [2023-02-15 02:22:55,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:55,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:55,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:55,065 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) [2023-02-15 02:22:55,067 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 [2023-02-15 02:22:55,069 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:55,069 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:55,109 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 [2023-02-15 02:22:55,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:55,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:55,111 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) [2023-02-15 02:22:55,113 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 [2023-02-15 02:22:55,115 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 02:22:55,115 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:55,213 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 02:22:55,219 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 [2023-02-15 02:22:55,219 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:55,219 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:55,219 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:55,219 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:55,219 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 02:22:55,220 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:55,220 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:55,220 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:55,220 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration1_Loop [2023-02-15 02:22:55,220 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:55,220 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:55,221 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:55,227 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:55,235 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:55,299 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:55,302 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 02:22:55,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:55,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:55,319 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) [2023-02-15 02:22:55,323 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 [2023-02-15 02:22:55,325 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 [2023-02-15 02:22:55,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:55,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:55,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:55,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:55,337 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 02:22:55,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 02:22:55,351 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 02:22:55,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:55,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:55,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:55,356 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) [2023-02-15 02:22:55,358 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 [2023-02-15 02:22:55,399 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 [2023-02-15 02:22:55,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:55,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:55,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:55,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:55,407 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 02:22:55,407 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 02:22:55,424 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 02:22:55,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-15 02:22:55,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:55,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:55,431 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) [2023-02-15 02:22:55,441 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 [2023-02-15 02:22:55,442 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 [2023-02-15 02:22:55,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:55,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 02:22:55,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:55,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:55,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:55,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 02:22:55,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 02:22:55,461 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 02:22:55,466 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-15 02:22:55,466 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-15 02:22:55,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:55,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:55,519 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) [2023-02-15 02:22:55,520 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 [2023-02-15 02:22:55,522 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 02:22:55,522 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 02:22:55,522 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 02:22:55,523 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-15 02:22:55,535 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 [2023-02-15 02:22:55,537 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 02:22:55,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:55,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 02:22:55,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:55,575 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 02:22:55,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:55,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:55,630 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 [2023-02-15 02:22:55,632 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) [2023-02-15 02:22:55,673 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. [2023-02-15 02:22:55,676 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 [2023-02-15 02:22:55,681 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) [2023-02-15 02:22:55,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2023-02-15 02:22:55,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-15 02:22:55,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:55,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-15 02:22:55,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:55,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 3 letters. Loop has 4 letters. [2023-02-15 02:22:55,685 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:55,686 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2023-02-15 02:22:55,690 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 02:22:55,692 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 9 states and 12 transitions. [2023-02-15 02:22:55,693 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-15 02:22:55,693 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-15 02:22:55,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-02-15 02:22:55,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 02:22:55,694 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-15 02:22:55,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-02-15 02:22:55,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-02-15 02:22:55,719 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) [2023-02-15 02:22:55,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2023-02-15 02:22:55,721 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-15 02:22:55,721 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 [2023-02-15 02:22:55,721 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-15 02:22:55,722 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-15 02:22:55,722 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2023-02-15 02:22:55,722 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 02:22:55,722 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 02:22:55,722 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 02:22:55,723 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-15 02:22:55,723 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-15 02:22:55,723 INFO L748 eck$LassoCheckResult]: Stem: 87#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 88#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 85#L17 assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 86#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 84#L19 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := 1 + main_~y~0#1; 80#L19-2 [2023-02-15 02:22:55,723 INFO L750 eck$LassoCheckResult]: Loop: 80#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 81#L19 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := 1 + main_~x~0#1; 80#L19-2 [2023-02-15 02:22:55,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:55,724 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 1 times [2023-02-15 02:22:55,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:55,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262488216] [2023-02-15 02:22:55,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:55,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:55,743 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:55,746 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:55,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:55,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 2 times [2023-02-15 02:22:55,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:55,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861245474] [2023-02-15 02:22:55,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:55,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:55,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:55,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:55,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:55,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122026, now seen corresponding path program 1 times [2023-02-15 02:22:55,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:55,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690412964] [2023-02-15 02:22:55,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:55,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:55,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:55,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:22:55,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690412964] [2023-02-15 02:22:55,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690412964] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:22:55,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:22:55,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 02:22:55,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345490532] [2023-02-15 02:22:55,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:22:55,841 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:55,842 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:55,842 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:55,842 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:55,842 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 02:22:55,842 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:55,842 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:55,842 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:55,842 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration2_Loop [2023-02-15 02:22:55,842 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:55,842 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:55,843 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:55,845 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:55,847 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:55,872 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:55,872 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 02:22:55,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:55,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:55,874 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) [2023-02-15 02:22:55,890 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:55,890 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:55,902 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 [2023-02-15 02:22:55,913 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:22:55,913 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: [] [2023-02-15 02:22:55,919 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 [2023-02-15 02:22:55,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:55,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:55,921 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) [2023-02-15 02:22:55,929 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:55,929 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:55,940 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 [2023-02-15 02:22:55,957 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:22:55,957 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 02:22:55,963 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 [2023-02-15 02:22:55,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:55,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:55,969 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) [2023-02-15 02:22:55,971 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 [2023-02-15 02:22:56,026 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:56,027 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:56,081 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 [2023-02-15 02:22:56,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:56,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:56,082 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) [2023-02-15 02:22:56,086 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 [2023-02-15 02:22:56,087 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 02:22:56,087 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:56,187 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 02:22:56,191 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 [2023-02-15 02:22:56,191 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:56,191 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:56,191 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:56,191 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:56,191 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 02:22:56,191 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:56,191 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:56,191 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:56,191 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration2_Loop [2023-02-15 02:22:56,191 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:56,191 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:56,192 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:56,197 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:56,199 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:56,231 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:56,231 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 02:22:56,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:56,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:56,233 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) [2023-02-15 02:22:56,248 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 [2023-02-15 02:22:56,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:56,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:56,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:56,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:56,256 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 02:22:56,256 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 02:22:56,260 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 [2023-02-15 02:22:56,277 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 02:22:56,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:56,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:56,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:56,283 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) [2023-02-15 02:22:56,312 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 [2023-02-15 02:22:56,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:56,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:56,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:56,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:56,320 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 02:22:56,320 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 02:22:56,324 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 [2023-02-15 02:22:56,332 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 02:22:56,338 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 [2023-02-15 02:22:56,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:56,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:56,340 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) [2023-02-15 02:22:56,342 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 [2023-02-15 02:22:56,345 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 [2023-02-15 02:22:56,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:56,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 02:22:56,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:56,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:56,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:56,358 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 02:22:56,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 02:22:56,373 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 02:22:56,375 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-15 02:22:56,375 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-15 02:22:56,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:56,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:56,389 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) [2023-02-15 02:22:56,398 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 02:22:56,398 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 02:22:56,398 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 02:22:56,398 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-15 02:22:56,399 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 [2023-02-15 02:22:56,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-02-15 02:22:56,402 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 02:22:56,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:56,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 02:22:56,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:56,426 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 02:22:56,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:56,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:56,441 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 [2023-02-15 02:22:56,441 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 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) [2023-02-15 02:22:56,449 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. 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 13 states and 18 transitions. Complement of second has 5 states. [2023-02-15 02:22:56,450 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 [2023-02-15 02:22:56,450 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) [2023-02-15 02:22:56,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-02-15 02:22:56,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-15 02:22:56,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:56,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2023-02-15 02:22:56,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:56,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2023-02-15 02:22:56,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:56,452 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2023-02-15 02:22:56,452 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 02:22:56,452 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. [2023-02-15 02:22:56,453 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-15 02:22:56,453 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-15 02:22:56,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2023-02-15 02:22:56,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 02:22:56,453 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-02-15 02:22:56,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2023-02-15 02:22:56,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-02-15 02:22:56,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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) [2023-02-15 02:22:56,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2023-02-15 02:22:56,454 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-02-15 02:22:56,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:22:56,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 02:22:56,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 02:22:56,457 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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) [2023-02-15 02:22:56,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:22:56,470 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2023-02-15 02:22:56,471 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2023-02-15 02:22:56,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 02:22:56,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 11 states and 13 transitions. [2023-02-15 02:22:56,472 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-15 02:22:56,472 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-15 02:22:56,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2023-02-15 02:22:56,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 02:22:56,472 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2023-02-15 02:22:56,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2023-02-15 02:22:56,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 8. [2023-02-15 02:22:56,473 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) [2023-02-15 02:22:56,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2023-02-15 02:22:56,473 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-02-15 02:22:56,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 02:22:56,474 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-02-15 02:22:56,474 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-15 02:22:56,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2023-02-15 02:22:56,474 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 02:22:56,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 02:22:56,475 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 02:22:56,475 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-15 02:22:56,475 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-15 02:22:56,475 INFO L748 eck$LassoCheckResult]: Stem: 177#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 178#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 175#L17 assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 176#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 172#L19 [2023-02-15 02:22:56,475 INFO L750 eck$LassoCheckResult]: Loop: 172#L19 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := 1 + main_~y~0#1; 171#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 172#L19 [2023-02-15 02:22:56,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:56,476 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2023-02-15 02:22:56,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:56,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663236236] [2023-02-15 02:22:56,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:56,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:56,480 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:56,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:56,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:56,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 1 times [2023-02-15 02:22:56,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:56,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434398502] [2023-02-15 02:22:56,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:56,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:56,486 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:56,488 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:56,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:56,491 INFO L85 PathProgramCache]: Analyzing trace with hash 889513735, now seen corresponding path program 2 times [2023-02-15 02:22:56,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:56,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731353061] [2023-02-15 02:22:56,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:56,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:56,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:56,505 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:56,522 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:56,523 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:56,523 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:56,523 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:56,523 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 02:22:56,523 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:56,523 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:56,523 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:56,523 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration3_Loop [2023-02-15 02:22:56,524 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:56,524 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:56,525 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:56,529 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:56,531 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:56,560 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:56,561 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 02:22:56,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:56,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:56,577 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) [2023-02-15 02:22:56,580 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 [2023-02-15 02:22:56,581 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:56,581 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:56,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:56,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:56,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:56,606 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) [2023-02-15 02:22:56,608 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 [2023-02-15 02:22:56,609 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 02:22:56,609 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:56,845 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 02:22:56,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-02-15 02:22:56,848 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:56,848 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:56,848 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:56,848 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:56,848 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 02:22:56,848 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:56,848 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:56,848 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:56,848 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration3_Loop [2023-02-15 02:22:56,848 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:56,849 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:56,849 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:56,865 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:56,867 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:56,893 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:56,893 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 02:22:56,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:56,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:56,894 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) [2023-02-15 02:22:56,935 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 [2023-02-15 02:22:56,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:56,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 02:22:56,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:56,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:56,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:56,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 02:22:56,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 02:22:56,948 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 [2023-02-15 02:22:56,950 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 02:22:56,954 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-15 02:22:56,954 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-15 02:22:56,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:56,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:56,967 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) [2023-02-15 02:22:56,971 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 02:22:56,971 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 02:22:56,971 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 02:22:56,971 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-15 02:22:56,972 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 [2023-02-15 02:22:56,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:56,975 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 02:22:56,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:56,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:56,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 02:22:56,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:56,996 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 02:22:56,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:57,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:57,022 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 [2023-02-15 02:22:57,022 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:57,035 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 15 transitions. Complement of second has 5 states. [2023-02-15 02:22:57,036 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 [2023-02-15 02:22:57,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:57,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-15 02:22:57,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-15 02:22:57,038 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:57,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-15 02:22:57,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:57,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2023-02-15 02:22:57,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:57,039 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2023-02-15 02:22:57,040 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 02:22:57,040 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 10 transitions. [2023-02-15 02:22:57,041 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-15 02:22:57,041 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-15 02:22:57,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2023-02-15 02:22:57,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 02:22:57,041 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-02-15 02:22:57,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2023-02-15 02:22:57,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-02-15 02:22:57,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:57,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2023-02-15 02:22:57,043 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2023-02-15 02:22:57,043 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2023-02-15 02:22:57,043 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-15 02:22:57,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2023-02-15 02:22:57,045 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 02:22:57,045 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 02:22:57,045 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 02:22:57,045 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2023-02-15 02:22:57,045 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-15 02:22:57,046 INFO L748 eck$LassoCheckResult]: Stem: 235#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 236#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 234#L17 assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 230#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 231#L19 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := 1 + main_~x~0#1; 232#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 233#L19 [2023-02-15 02:22:57,046 INFO L750 eck$LassoCheckResult]: Loop: 233#L19 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := 1 + main_~y~0#1; 237#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 233#L19 [2023-02-15 02:22:57,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:57,046 INFO L85 PathProgramCache]: Analyzing trace with hash 889513673, now seen corresponding path program 2 times [2023-02-15 02:22:57,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:57,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784401976] [2023-02-15 02:22:57,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:57,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:57,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:57,070 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:57,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:57,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 2 times [2023-02-15 02:22:57,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:57,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446014901] [2023-02-15 02:22:57,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:57,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:57,078 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:57,081 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:57,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:57,082 INFO L85 PathProgramCache]: Analyzing trace with hash 124148452, now seen corresponding path program 2 times [2023-02-15 02:22:57,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:57,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771398117] [2023-02-15 02:22:57,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:57,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:57,133 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:57,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:22:57,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771398117] [2023-02-15 02:22:57,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771398117] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:22:57,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:22:57,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 02:22:57,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105907920] [2023-02-15 02:22:57,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:22:57,148 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:57,148 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:57,148 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:57,148 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:57,148 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 02:22:57,148 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:57,149 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:57,149 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:57,149 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration4_Loop [2023-02-15 02:22:57,149 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:57,149 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:57,150 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:57,152 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:57,154 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:57,176 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:57,177 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 02:22:57,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:57,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:57,178 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) [2023-02-15 02:22:57,193 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 [2023-02-15 02:22:57,194 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:57,194 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:57,215 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:22:57,215 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 02:22:57,218 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 [2023-02-15 02:22:57,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:57,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:57,220 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) [2023-02-15 02:22:57,222 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 [2023-02-15 02:22:57,224 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:57,224 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:57,245 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:22:57,246 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: [] [2023-02-15 02:22:57,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-02-15 02:22:57,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:57,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:57,250 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) [2023-02-15 02:22:57,252 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 [2023-02-15 02:22:57,254 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:57,254 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:57,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-02-15 02:22:57,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:57,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:57,279 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) [2023-02-15 02:22:57,281 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 [2023-02-15 02:22:57,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 02:22:57,283 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:57,526 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 02:22:57,530 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 [2023-02-15 02:22:57,530 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:57,531 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:57,531 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:57,531 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:57,531 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 02:22:57,531 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:57,531 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:57,531 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:57,531 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration4_Loop [2023-02-15 02:22:57,531 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:57,531 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:57,532 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:57,534 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:57,536 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:57,562 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:57,562 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 02:22:57,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:57,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:57,570 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) [2023-02-15 02:22:57,572 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 [2023-02-15 02:22:57,573 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 [2023-02-15 02:22:57,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:57,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:57,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:57,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:57,581 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 02:22:57,581 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 02:22:57,612 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 02:22:57,617 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 [2023-02-15 02:22:57,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:57,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:57,619 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) [2023-02-15 02:22:57,621 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 [2023-02-15 02:22:57,623 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 [2023-02-15 02:22:57,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:57,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:57,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:57,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:57,631 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 02:22:57,631 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 02:22:57,648 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 02:22:57,654 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 [2023-02-15 02:22:57,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:57,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:57,661 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) [2023-02-15 02:22:57,663 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 [2023-02-15 02:22:57,665 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 [2023-02-15 02:22:57,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:57,671 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 02:22:57,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:57,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:57,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:57,672 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 02:22:57,672 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 02:22:57,687 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 02:22:57,690 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-15 02:22:57,690 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-15 02:22:57,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:57,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:57,701 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) [2023-02-15 02:22:57,710 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 02:22:57,710 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 02:22:57,710 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 02:22:57,711 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-15 02:22:57,727 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 [2023-02-15 02:22:57,727 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 [2023-02-15 02:22:57,739 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 [2023-02-15 02:22:57,740 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 [2023-02-15 02:22:57,741 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 02:22:57,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:57,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 02:22:57,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:57,763 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 02:22:57,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:57,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:57,774 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 [2023-02-15 02:22:57,774 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3 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) [2023-02-15 02:22:57,778 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3. 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 9 states and 10 transitions. Complement of second has 3 states. [2023-02-15 02:22:57,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-02-15 02:22:57,778 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) [2023-02-15 02:22:57,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2023-02-15 02:22:57,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-15 02:22:57,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:57,779 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-15 02:22:57,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:57,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 02:22:57,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:57,797 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 02:22:57,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:57,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:57,808 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 [2023-02-15 02:22:57,808 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3 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) [2023-02-15 02:22:57,811 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3. 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 9 states and 10 transitions. Complement of second has 3 states. [2023-02-15 02:22:57,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-02-15 02:22:57,812 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) [2023-02-15 02:22:57,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2023-02-15 02:22:57,812 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-15 02:22:57,812 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:57,812 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-15 02:22:57,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:57,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 02:22:57,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:57,830 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 02:22:57,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:57,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:57,841 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 [2023-02-15 02:22:57,841 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3 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) [2023-02-15 02:22:57,846 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3. 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 10 states and 11 transitions. Complement of second has 4 states. [2023-02-15 02:22:57,847 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 [2023-02-15 02:22:57,847 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) [2023-02-15 02:22:57,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2023-02-15 02:22:57,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-15 02:22:57,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:57,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2023-02-15 02:22:57,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:57,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2023-02-15 02:22:57,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:57,849 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2023-02-15 02:22:57,849 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 02:22:57,849 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2023-02-15 02:22:57,849 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-15 02:22:57,849 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-15 02:22:57,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-15 02:22:57,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 02:22:57,850 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 02:22:57,850 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 02:22:57,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:22:57,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 02:22:57,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 02:22:57,851 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 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) [2023-02-15 02:22:57,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:22:57,851 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-02-15 02:22:57,851 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-02-15 02:22:57,851 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 02:22:57,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 02:22:57,851 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-15 02:22:57,851 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-15 02:22:57,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-15 02:22:57,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 02:22:57,852 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 02:22:57,852 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 02:22:57,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 02:22:57,852 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 02:22:57,852 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-15 02:22:57,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-15 02:22:57,853 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 02:22:57,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-15 02:22:57,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.02 02:22:57 BoogieIcfgContainer [2023-02-15 02:22:57,858 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-15 02:22:57,859 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 02:22:57,859 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 02:22:57,859 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 02:22:57,859 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:22:54" (3/4) ... [2023-02-15 02:22:57,861 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-15 02:22:57,861 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 02:22:57,862 INFO L158 Benchmark]: Toolchain (without parser) took 3746.35ms. Allocated memory was 178.3MB in the beginning and 230.7MB in the end (delta: 52.4MB). Free memory was 146.2MB in the beginning and 180.5MB in the end (delta: -34.3MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2023-02-15 02:22:57,862 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 125.8MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:22:57,862 INFO L158 Benchmark]: CACSL2BoogieTranslator took 158.53ms. Allocated memory is still 178.3MB. Free memory was 146.2MB in the beginning and 137.2MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 02:22:57,863 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.51ms. Allocated memory is still 178.3MB. Free memory was 137.2MB in the beginning and 135.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 02:22:57,863 INFO L158 Benchmark]: Boogie Preprocessor took 12.81ms. Allocated memory is still 178.3MB. Free memory was 135.8MB in the beginning and 135.2MB in the end (delta: 679.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:22:57,863 INFO L158 Benchmark]: RCFGBuilder took 266.95ms. Allocated memory is still 178.3MB. Free memory was 135.2MB in the beginning and 126.1MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 02:22:57,864 INFO L158 Benchmark]: BuchiAutomizer took 3278.80ms. Allocated memory was 178.3MB in the beginning and 230.7MB in the end (delta: 52.4MB). Free memory was 126.1MB in the beginning and 180.5MB in the end (delta: -54.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:22:57,864 INFO L158 Benchmark]: Witness Printer took 2.70ms. Allocated memory is still 230.7MB. Free memory is still 180.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:22:57,865 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 125.8MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 158.53ms. Allocated memory is still 178.3MB. Free memory was 146.2MB in the beginning and 137.2MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.51ms. Allocated memory is still 178.3MB. Free memory was 137.2MB in the beginning and 135.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.81ms. Allocated memory is still 178.3MB. Free memory was 135.8MB in the beginning and 135.2MB in the end (delta: 679.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 266.95ms. Allocated memory is still 178.3MB. Free memory was 135.2MB in the beginning and 126.1MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3278.80ms. Allocated memory was 178.3MB in the beginning and 230.7MB in the end (delta: 52.4MB). Free memory was 126.1MB in the beginning and 180.5MB in the end (delta: -54.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.70ms. Allocated memory is still 230.7MB. Free memory is still 180.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y + -1 * x and consists of 5 locations. One deterministic module has affine ranking function y + -1 * x and consists of 3 locations. One deterministic module has affine ranking function -1 * y + x and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 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, 39 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 38 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax200 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-15 02:22:57,882 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 [2023-02-15 02:22:58,077 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