./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/c.07.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 574ddb4e 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/c.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 5bf26ccbca67eadfc8be228ae0ce73967bf71adff541d9e72eed0a31a7109bae --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-19 00:18:20,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-19 00:18:20,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-19 00:18:20,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-19 00:18:20,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-19 00:18:20,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-19 00:18:20,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-19 00:18:20,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-19 00:18:20,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-19 00:18:20,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-19 00:18:20,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-19 00:18:20,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-19 00:18:20,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-19 00:18:20,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-19 00:18:20,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-19 00:18:20,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-19 00:18:20,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-19 00:18:20,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-19 00:18:20,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-19 00:18:20,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-19 00:18:20,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-19 00:18:20,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-19 00:18:20,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-19 00:18:20,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-19 00:18:20,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-19 00:18:20,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-19 00:18:20,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-19 00:18:20,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-19 00:18:20,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-19 00:18:20,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-19 00:18:20,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-19 00:18:20,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-19 00:18:20,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-19 00:18:20,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-19 00:18:20,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-19 00:18:20,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-19 00:18:20,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-19 00:18:20,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-19 00:18:20,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-19 00:18:20,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-19 00:18:20,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-19 00:18:20,781 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-19 00:18:20,804 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-19 00:18:20,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-19 00:18:20,804 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-19 00:18:20,805 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-19 00:18:20,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-19 00:18:20,806 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-19 00:18:20,806 INFO L138 SettingsManager]: * Use SBE=true [2023-02-19 00:18:20,806 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-19 00:18:20,806 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-19 00:18:20,806 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-19 00:18:20,807 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-19 00:18:20,807 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-19 00:18:20,807 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-19 00:18:20,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-19 00:18:20,807 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-19 00:18:20,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-19 00:18:20,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-19 00:18:20,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-19 00:18:20,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-19 00:18:20,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-19 00:18:20,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-19 00:18:20,808 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-19 00:18:20,809 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-19 00:18:20,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-19 00:18:20,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-19 00:18:20,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-19 00:18:20,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-19 00:18:20,810 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-19 00:18:20,810 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-19 00:18:20,811 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bf26ccbca67eadfc8be228ae0ce73967bf71adff541d9e72eed0a31a7109bae [2023-02-19 00:18:20,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-19 00:18:20,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-19 00:18:20,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-19 00:18:20,984 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-19 00:18:20,984 INFO L275 PluginConnector]: CDTParser initialized [2023-02-19 00:18:20,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/c.07.c [2023-02-19 00:18:22,048 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-19 00:18:22,186 INFO L351 CDTParser]: Found 1 translation units. [2023-02-19 00:18:22,186 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/c.07.c [2023-02-19 00:18:22,192 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0636f45ec/798b39533cc041d590fc050f8dbf08a5/FLAGcd3038295 [2023-02-19 00:18:22,202 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0636f45ec/798b39533cc041d590fc050f8dbf08a5 [2023-02-19 00:18:22,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-19 00:18:22,204 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-19 00:18:22,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-19 00:18:22,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-19 00:18:22,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-19 00:18:22,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 12:18:22" (1/1) ... [2023-02-19 00:18:22,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32835034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:18:22, skipping insertion in model container [2023-02-19 00:18:22,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 12:18:22" (1/1) ... [2023-02-19 00:18:22,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-19 00:18:22,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-19 00:18:22,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-19 00:18:22,339 INFO L203 MainTranslator]: Completed pre-run [2023-02-19 00:18:22,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-19 00:18:22,356 INFO L208 MainTranslator]: Completed translation [2023-02-19 00:18:22,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:18:22 WrapperNode [2023-02-19 00:18:22,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-19 00:18:22,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-19 00:18:22,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-19 00:18:22,357 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-19 00:18:22,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:18:22" (1/1) ... [2023-02-19 00:18:22,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:18:22" (1/1) ... [2023-02-19 00:18:22,374 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2023-02-19 00:18:22,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-19 00:18:22,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-19 00:18:22,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-19 00:18:22,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-19 00:18:22,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:18:22" (1/1) ... [2023-02-19 00:18:22,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:18:22" (1/1) ... [2023-02-19 00:18:22,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:18:22" (1/1) ... [2023-02-19 00:18:22,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:18:22" (1/1) ... [2023-02-19 00:18:22,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:18:22" (1/1) ... [2023-02-19 00:18:22,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:18:22" (1/1) ... [2023-02-19 00:18:22,384 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:18:22" (1/1) ... [2023-02-19 00:18:22,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:18:22" (1/1) ... [2023-02-19 00:18:22,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-19 00:18:22,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-19 00:18:22,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-19 00:18:22,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-19 00:18:22,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:18:22" (1/1) ... [2023-02-19 00:18:22,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:18:22,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-19 00:18:22,406 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) [2023-02-19 00:18:22,423 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 [2023-02-19 00:18:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-19 00:18:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-19 00:18:22,480 INFO L235 CfgBuilder]: Building ICFG [2023-02-19 00:18:22,482 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-19 00:18:22,527 INFO L276 CfgBuilder]: Performing block encoding [2023-02-19 00:18:22,531 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-19 00:18:22,532 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-19 00:18:22,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 12:18:22 BoogieIcfgContainer [2023-02-19 00:18:22,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-19 00:18:22,534 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-19 00:18:22,534 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-19 00:18:22,537 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-19 00:18:22,537 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-19 00:18:22,537 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.02 12:18:22" (1/3) ... [2023-02-19 00:18:22,538 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7972b423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.02 12:18:22, skipping insertion in model container [2023-02-19 00:18:22,538 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-19 00:18:22,538 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:18:22" (2/3) ... [2023-02-19 00:18:22,538 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7972b423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.02 12:18:22, skipping insertion in model container [2023-02-19 00:18:22,539 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-19 00:18:22,539 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 12:18:22" (3/3) ... [2023-02-19 00:18:22,540 INFO L332 chiAutomizerObserver]: Analyzing ICFG c.07.c [2023-02-19 00:18:22,574 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-19 00:18:22,574 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-19 00:18:22,574 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-19 00:18:22,575 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-19 00:18:22,575 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-19 00:18:22,575 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-19 00:18:22,575 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-19 00:18:22,575 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-19 00:18:22,578 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) [2023-02-19 00:18:22,588 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-19 00:18:22,588 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-19 00:18:22,588 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-19 00:18:22,591 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-19 00:18:22,591 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-19 00:18:22,591 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-19 00:18:22,592 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) [2023-02-19 00:18:22,592 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-19 00:18:22,592 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-19 00:18:22,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-19 00:18:22,593 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-19 00:18:22,593 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-19 00:18:22,598 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~c~0#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~tmp~0#1;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~tmp~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~tmp~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~c~0#1 := 0; 2#L12-2true [2023-02-19 00:18:22,598 INFO L750 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!((main_~i~0#1 <= 100 && main_~j~0#1 <= main_~k~0#1) && main_~k~0#1 > -2147483648);main_~tmp~0#1 := main_~i~0#1;main_~i~0#1 := main_~j~0#1;main_~j~0#1 := 1 + main_~tmp~0#1;main_~k~0#1 := main_~k~0#1 - 1; 2#L12-2true [2023-02-19 00:18:22,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-19 00:18:22,603 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-19 00:18:22,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-19 00:18:22,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028781706] [2023-02-19 00:18:22,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-19 00:18:22,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-19 00:18:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-19 00:18:22,679 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-19 00:18:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-19 00:18:22,710 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-19 00:18:22,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-19 00:18:22,712 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-02-19 00:18:22,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-19 00:18:22,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589111311] [2023-02-19 00:18:22,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-19 00:18:22,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-19 00:18:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-19 00:18:22,732 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-19 00:18:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-19 00:18:22,745 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-19 00:18:22,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-19 00:18:22,746 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-19 00:18:22,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-19 00:18:22,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646238318] [2023-02-19 00:18:22,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-19 00:18:22,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-19 00:18:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-19 00:18:22,756 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-19 00:18:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-19 00:18:22,761 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-19 00:18:22,785 INFO L210 LassoAnalysis]: Preferences: [2023-02-19 00:18:22,786 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-19 00:18:22,789 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-19 00:18:22,789 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-19 00:18:22,789 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-19 00:18:22,790 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:18:22,790 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-19 00:18:22,790 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-19 00:18:22,790 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.07.c_Iteration1_Loop [2023-02-19 00:18:22,790 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-19 00:18:22,790 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-19 00:18:22,805 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-19 00:18:22,811 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-19 00:18:22,821 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-19 00:18:22,838 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-19 00:18:22,840 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-19 00:18:22,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:18:22,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-19 00:18:22,870 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) [2023-02-19 00:18:22,872 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 [2023-02-19 00:18:22,873 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-19 00:18:22,873 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-19 00:18:22,904 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-19 00:18:22,905 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: [] [2023-02-19 00:18:22,921 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 [2023-02-19 00:18:22,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:18:22,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-19 00:18:22,923 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) [2023-02-19 00:18:22,925 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 [2023-02-19 00:18:22,927 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-19 00:18:22,927 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-19 00:18:22,949 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-19 00:18:22,949 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: [] [2023-02-19 00:18:22,973 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 [2023-02-19 00:18:22,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:18:22,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-19 00:18:22,977 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) [2023-02-19 00:18:22,993 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-19 00:18:22,993 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-19 00:18:22,998 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 [2023-02-19 00:18:23,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-19 00:18:23,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:18:23,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-19 00:18:23,048 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) [2023-02-19 00:18:23,089 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 [2023-02-19 00:18:23,090 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-19 00:18:23,090 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-19 00:18:23,116 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-19 00:18:23,125 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 [2023-02-19 00:18:23,126 INFO L210 LassoAnalysis]: Preferences: [2023-02-19 00:18:23,126 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-19 00:18:23,126 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-19 00:18:23,126 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-19 00:18:23,126 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-19 00:18:23,126 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:18:23,126 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-19 00:18:23,126 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-19 00:18:23,126 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.07.c_Iteration1_Loop [2023-02-19 00:18:23,127 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-19 00:18:23,127 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-19 00:18:23,128 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-19 00:18:23,130 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-19 00:18:23,136 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-19 00:18:23,140 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-19 00:18:23,145 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-19 00:18:23,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:18:23,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-19 00:18:23,148 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) [2023-02-19 00:18:23,150 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 [2023-02-19 00:18:23,152 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 [2023-02-19 00:18:23,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-19 00:18:23,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-19 00:18:23,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-19 00:18:23,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-19 00:18:23,165 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-19 00:18:23,165 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-19 00:18:23,197 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-19 00:18:23,206 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 [2023-02-19 00:18:23,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:18:23,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-19 00:18:23,208 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) [2023-02-19 00:18:23,210 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 [2023-02-19 00:18:23,211 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 [2023-02-19 00:18:23,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-19 00:18:23,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-19 00:18:23,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-19 00:18:23,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-19 00:18:23,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-19 00:18:23,224 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-19 00:18:23,224 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-19 00:18:23,241 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-19 00:18:23,247 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-19 00:18:23,247 INFO L444 ModelExtractionUtils]: 1 out of 6 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-02-19 00:18:23,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:18:23,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-19 00:18:23,255 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) [2023-02-19 00:18:23,257 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 [2023-02-19 00:18:23,258 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-19 00:18:23,259 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-19 00:18:23,259 INFO L513 LassoAnalysis]: Proved termination. [2023-02-19 00:18:23,259 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1) = 2*ULTIMATE.start_main_~k~0#1 + 4294967295 Supporting invariants [] [2023-02-19 00:18:23,270 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 [2023-02-19 00:18:23,272 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-19 00:18:23,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-19 00:18:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-19 00:18:23,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-19 00:18:23,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-19 00:18:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-19 00:18:23,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-19 00:18:23,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-19 00:18:23,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-19 00:18:23,335 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 [2023-02-19 00:18:23,337 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) [2023-02-19 00:18:23,358 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. [2023-02-19 00:18:23,361 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 [2023-02-19 00:18:23,371 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) [2023-02-19 00:18:23,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2023-02-19 00:18:23,373 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 1 letters. [2023-02-19 00:18:23,373 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-19 00:18:23,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-19 00:18:23,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-19 00:18:23,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-19 00:18:23,375 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-19 00:18:23,376 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2023-02-19 00:18:23,377 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-19 00:18:23,379 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2023-02-19 00:18:23,380 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-19 00:18:23,380 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-19 00:18:23,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-19 00:18:23,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-19 00:18:23,381 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-19 00:18:23,381 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-19 00:18:23,381 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-19 00:18:23,381 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-19 00:18:23,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-19 00:18:23,382 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-19 00:18:23,382 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-19 00:18:23,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.02 12:18:23 BoogieIcfgContainer [2023-02-19 00:18:23,387 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-19 00:18:23,387 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-19 00:18:23,388 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-19 00:18:23,388 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-19 00:18:23,388 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 12:18:22" (3/4) ... [2023-02-19 00:18:23,390 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-19 00:18:23,390 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-19 00:18:23,391 INFO L158 Benchmark]: Toolchain (without parser) took 1186.59ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 85.7MB in the beginning and 99.6MB in the end (delta: -13.8MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2023-02-19 00:18:23,392 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 132.1MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-19 00:18:23,393 INFO L158 Benchmark]: CACSL2BoogieTranslator took 139.76ms. Allocated memory is still 132.1MB. Free memory was 85.7MB in the beginning and 76.6MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-19 00:18:23,396 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.07ms. Allocated memory is still 132.1MB. Free memory was 76.6MB in the beginning and 75.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-19 00:18:23,397 INFO L158 Benchmark]: Boogie Preprocessor took 10.36ms. Allocated memory is still 132.1MB. Free memory was 75.3MB in the beginning and 74.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-19 00:18:23,398 INFO L158 Benchmark]: RCFGBuilder took 147.86ms. Allocated memory is still 132.1MB. Free memory was 74.0MB in the beginning and 66.1MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-19 00:18:23,399 INFO L158 Benchmark]: BuchiAutomizer took 853.21ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 66.1MB in the beginning and 99.6MB in the end (delta: -33.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-19 00:18:23,399 INFO L158 Benchmark]: Witness Printer took 2.99ms. Allocated memory is still 159.4MB. Free memory is still 99.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-19 00:18:23,404 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 132.1MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 139.76ms. Allocated memory is still 132.1MB. Free memory was 85.7MB in the beginning and 76.6MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.07ms. Allocated memory is still 132.1MB. Free memory was 76.6MB in the beginning and 75.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 10.36ms. Allocated memory is still 132.1MB. Free memory was 75.3MB in the beginning and 74.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 147.86ms. Allocated memory is still 132.1MB. Free memory was 74.0MB in the beginning and 66.1MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 853.21ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 66.1MB in the beginning and 99.6MB in the end (delta: -33.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.99ms. Allocated memory is still 159.4MB. Free memory is still 99.6MB. 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 2 * k + 4294967295 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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: inital27 mio100 ax144 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq174 hnf91 smp100 dnf100 smp100 tf104 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 50ms 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! [2023-02-19 00:18:23,417 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 [2023-02-19 00:18:23,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE