./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/a.07.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a31fd051 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/a.07.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 662326001f61b68297375e4138420a74e8c43c9b4c5124522e447d091a284d35 --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 14:16:36,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 14:16:36,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 14:16:36,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 14:16:36,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 14:16:36,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 14:16:36,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 14:16:36,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 14:16:36,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 14:16:36,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 14:16:36,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 14:16:36,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 14:16:36,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 14:16:36,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 14:16:36,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 14:16:36,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 14:16:36,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 14:16:36,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 14:16:36,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 14:16:36,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 14:16:36,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 14:16:36,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 14:16:36,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 14:16:36,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 14:16:36,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 14:16:36,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 14:16:36,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 14:16:36,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 14:16:36,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 14:16:36,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 14:16:36,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 14:16:36,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 14:16:36,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 14:16:36,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 14:16:36,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 14:16:36,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 14:16:36,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 14:16:36,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 14:16:36,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 14:16:36,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 14:16:36,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 14:16:36,146 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-15 14:16:36,169 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 14:16:36,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 14:16:36,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 14:16:36,170 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 14:16:36,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 14:16:36,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 14:16:36,171 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 14:16:36,171 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-15 14:16:36,172 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-15 14:16:36,172 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-15 14:16:36,172 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-15 14:16:36,173 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-15 14:16:36,173 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-15 14:16:36,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 14:16:36,173 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 14:16:36,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 14:16:36,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 14:16:36,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-15 14:16:36,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-15 14:16:36,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-15 14:16:36,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 14:16:36,175 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-15 14:16:36,175 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 14:16:36,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-15 14:16:36,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 14:16:36,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 14:16:36,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 14:16:36,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 14:16:36,177 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-15 14:16:36,177 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 662326001f61b68297375e4138420a74e8c43c9b4c5124522e447d091a284d35 [2023-02-15 14:16:36,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 14:16:36,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 14:16:36,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 14:16:36,409 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 14:16:36,409 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 14:16:36,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/a.07.c [2023-02-15 14:16:37,255 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 14:16:37,404 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 14:16:37,405 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/a.07.c [2023-02-15 14:16:37,408 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c95d37192/56407f2b4bb94521bf95dcb3a22a0deb/FLAGde95422b2 [2023-02-15 14:16:37,422 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c95d37192/56407f2b4bb94521bf95dcb3a22a0deb [2023-02-15 14:16:37,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 14:16:37,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 14:16:37,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 14:16:37,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 14:16:37,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 14:16:37,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:16:37" (1/1) ... [2023-02-15 14:16:37,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17c8ba86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:37, skipping insertion in model container [2023-02-15 14:16:37,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:16:37" (1/1) ... [2023-02-15 14:16:37,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 14:16:37,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 14:16:37,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:16:37,562 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 14:16:37,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:16:37,582 INFO L208 MainTranslator]: Completed translation [2023-02-15 14:16:37,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:37 WrapperNode [2023-02-15 14:16:37,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 14:16:37,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 14:16:37,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 14:16:37,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 14:16:37,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:37" (1/1) ... [2023-02-15 14:16:37,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:37" (1/1) ... [2023-02-15 14:16:37,603 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-02-15 14:16:37,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 14:16:37,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 14:16:37,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 14:16:37,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 14:16:37,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:37" (1/1) ... [2023-02-15 14:16:37,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:37" (1/1) ... [2023-02-15 14:16:37,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:37" (1/1) ... [2023-02-15 14:16:37,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:37" (1/1) ... [2023-02-15 14:16:37,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:37" (1/1) ... [2023-02-15 14:16:37,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:37" (1/1) ... [2023-02-15 14:16:37,617 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:37" (1/1) ... [2023-02-15 14:16:37,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:37" (1/1) ... [2023-02-15 14:16:37,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 14:16:37,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 14:16:37,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 14:16:37,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 14:16:37,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:37" (1/1) ... [2023-02-15 14:16:37,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:37,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:37,646 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 14:16:37,663 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 14:16:37,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 14:16:37,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 14:16:37,720 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 14:16:37,722 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 14:16:37,768 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 14:16:37,772 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 14:16:37,772 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 14:16:37,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:16:37 BoogieIcfgContainer [2023-02-15 14:16:37,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 14:16:37,774 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-15 14:16:37,774 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-15 14:16:37,777 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-15 14:16:37,777 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:16:37,777 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.02 02:16:37" (1/3) ... [2023-02-15 14:16:37,778 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@107f58cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:16:37, skipping insertion in model container [2023-02-15 14:16:37,778 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:16:37,778 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:37" (2/3) ... [2023-02-15 14:16:37,778 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@107f58cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:16:37, skipping insertion in model container [2023-02-15 14:16:37,778 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:16:37,779 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:16:37" (3/3) ... [2023-02-15 14:16:37,779 INFO L332 chiAutomizerObserver]: Analyzing ICFG a.07.c [2023-02-15 14:16:37,811 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-15 14:16:37,812 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-15 14:16:37,812 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-15 14:16:37,812 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-15 14:16:37,812 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-15 14:16:37,812 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-15 14:16:37,812 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-15 14:16:37,813 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-15 14:16:37,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:16:37,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 14:16:37,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:16:37,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:16:37,830 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 14:16:37,830 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 14:16:37,831 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-15 14:16:37,831 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:16:37,832 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 14:16:37,832 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:16:37,832 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:16:37,832 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 14:16:37,833 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 14:16:37,838 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0; 2#L12-2true [2023-02-15 14:16:37,839 INFO L750 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!(main_~x~0#1 > main_~y~0#1 && main_~x~0#1 > main_~z~0#1);main_~y~0#1 := 1 + main_~y~0#1;main_~z~0#1 := 1 + main_~z~0#1; 2#L12-2true [2023-02-15 14:16:37,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:16:37,843 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-15 14:16:37,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:16:37,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158627108] [2023-02-15 14:16:37,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:16:37,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:16:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:37,903 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:16:37,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:37,924 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:16:37,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:16:37,927 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-02-15 14:16:37,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:16:37,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578220367] [2023-02-15 14:16:37,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:16:37,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:16:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:37,945 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:16:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:37,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:16:37,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:16:37,957 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-15 14:16:37,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:16:37,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749284954] [2023-02-15 14:16:37,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:16:37,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:16:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:37,969 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:16:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:37,978 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:16:38,067 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:16:38,068 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:16:38,068 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:16:38,068 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:16:38,068 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 14:16:38,068 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:38,068 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:16:38,068 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:16:38,068 INFO L133 ssoRankerPreferences]: Filename of dumped script: a.07.c_Iteration1_Loop [2023-02-15 14:16:38,068 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:16:38,068 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:16:38,079 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 14:16:38,103 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 14:16:38,106 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 14:16:38,183 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:16:38,183 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 14:16:38,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:38,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:38,187 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 14:16:38,188 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 14:16:38,190 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:16:38,190 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:16:38,207 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:16:38,208 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 14:16:38,218 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 14:16:38,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:38,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:38,220 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 14:16:38,221 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 14:16:38,223 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:16:38,223 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:16:38,238 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:16:38,238 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 14:16:38,245 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 14:16:38,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:38,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:38,246 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 14:16:38,248 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 14:16:38,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:16:38,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:16:38,267 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 14:16:38,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:38,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:38,268 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 14:16:38,269 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 14:16:38,271 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 14:16:38,271 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:16:38,404 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 14:16:38,409 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 14:16:38,409 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:16:38,409 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:16:38,409 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:16:38,409 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:16:38,409 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 14:16:38,409 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:38,410 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:16:38,410 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:16:38,410 INFO L133 ssoRankerPreferences]: Filename of dumped script: a.07.c_Iteration1_Loop [2023-02-15 14:16:38,410 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:16:38,410 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:16:38,412 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 14:16:38,416 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 14:16:38,419 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 14:16:38,469 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:16:38,472 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 14:16:38,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:38,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:38,482 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 14:16:38,482 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 14:16:38,485 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 14:16:38,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:16:38,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:16:38,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:16:38,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:16:38,495 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:16:38,495 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:16:38,506 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:16:38,525 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 14:16:38,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:38,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:38,527 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 14:16:38,530 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 14:16:38,531 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 14:16:38,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:16:38,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:16:38,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:16:38,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:16:38,540 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:16:38,540 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:16:38,559 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:16:38,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-15 14:16:38,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:38,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:38,563 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 14:16:38,564 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 14:16:38,566 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 14:16:38,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:16:38,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:16:38,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:16:38,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:16:38,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:16:38,574 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:16:38,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:16:38,584 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 14:16:38,587 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-15 14:16:38,587 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-15 14:16:38,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:38,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:38,591 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 14:16:38,592 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 14:16:38,593 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 14:16:38,593 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 14:16:38,593 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 14:16:38,593 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 14:16:38,596 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 14:16:38,599 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 14:16:38,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:16:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:16:38,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 14:16:38,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:16:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:16:38,637 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 14:16:38,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:16:38,638 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 14:16:38,656 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-15 14:16:38,658 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 14:16:38,677 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 19 transitions. Complement of second has 5 states. [2023-02-15 14:16:38,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-15 14:16:38,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 14:16:38,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2023-02-15 14:16:38,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 1 letters. [2023-02-15 14:16:38,686 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:16:38,686 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-15 14:16:38,686 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:16:38,686 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-15 14:16:38,686 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:16:38,687 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2023-02-15 14:16:38,689 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 14:16:38,690 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2023-02-15 14:16:38,691 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-15 14:16:38,691 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-15 14:16:38,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-15 14:16:38,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 14:16:38,692 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:16:38,692 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:16:38,692 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:16:38,692 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-15 14:16:38,692 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-15 14:16:38,692 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 14:16:38,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-15 14:16:38,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.02 02:16:38 BoogieIcfgContainer [2023-02-15 14:16:38,697 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-15 14:16:38,697 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 14:16:38,697 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 14:16:38,697 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 14:16:38,698 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:16:37" (3/4) ... [2023-02-15 14:16:38,699 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-15 14:16:38,700 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 14:16:38,700 INFO L158 Benchmark]: Toolchain (without parser) took 1274.37ms. Allocated memory was 119.5MB in the beginning and 153.1MB in the end (delta: 33.6MB). Free memory was 83.4MB in the beginning and 96.5MB in the end (delta: -13.1MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2023-02-15 14:16:38,701 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory was 85.6MB in the beginning and 85.6MB in the end (delta: 18.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:16:38,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 156.74ms. Allocated memory is still 119.5MB. Free memory was 83.4MB in the beginning and 73.9MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 14:16:38,705 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.71ms. Allocated memory is still 119.5MB. Free memory was 73.9MB in the beginning and 72.9MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 14:16:38,707 INFO L158 Benchmark]: Boogie Preprocessor took 14.68ms. Allocated memory is still 119.5MB. Free memory was 72.4MB in the beginning and 71.8MB in the end (delta: 659.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:16:38,707 INFO L158 Benchmark]: RCFGBuilder took 153.96ms. Allocated memory is still 119.5MB. Free memory was 71.8MB in the beginning and 63.5MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 14:16:38,707 INFO L158 Benchmark]: BuchiAutomizer took 922.57ms. Allocated memory was 119.5MB in the beginning and 153.1MB in the end (delta: 33.6MB). Free memory was 63.5MB in the beginning and 96.5MB in the end (delta: -33.0MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2023-02-15 14:16:38,707 INFO L158 Benchmark]: Witness Printer took 2.43ms. Allocated memory is still 153.1MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:16:38,712 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory was 85.6MB in the beginning and 85.6MB in the end (delta: 18.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 156.74ms. Allocated memory is still 119.5MB. Free memory was 83.4MB in the beginning and 73.9MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.71ms. Allocated memory is still 119.5MB. Free memory was 73.9MB in the beginning and 72.9MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.68ms. Allocated memory is still 119.5MB. Free memory was 72.4MB in the beginning and 71.8MB in the end (delta: 659.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 153.96ms. Allocated memory is still 119.5MB. Free memory was 71.8MB in the beginning and 63.5MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 922.57ms. Allocated memory was 119.5MB in the beginning and 153.1MB in the end (delta: 33.6MB). Free memory was 63.5MB in the beginning and 96.5MB in the end (delta: -33.0MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. * Witness Printer took 2.43ms. Allocated memory is still 153.1MB. Free memory is still 96.5MB. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * y + x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 5 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf100 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf100 smp100 dnf93 smp100 tf107 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s 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 14:16:38,727 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-15 14:16:38,928 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