./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3dbbec33 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.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 c64ddc091da8ed0532dcccc83eb64a4ecc9abe88fb93c047052ca7ac9ea29989 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3dbbec3 [2023-02-14 14:42:00,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 14:42:00,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 14:42:00,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 14:42:00,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 14:42:00,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 14:42:00,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 14:42:00,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 14:42:00,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 14:42:00,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 14:42:00,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 14:42:00,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 14:42:00,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 14:42:00,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 14:42:00,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 14:42:00,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 14:42:00,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 14:42:00,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 14:42:00,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 14:42:00,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 14:42:00,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 14:42:00,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 14:42:00,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 14:42:00,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 14:42:00,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 14:42:00,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 14:42:00,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 14:42:00,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 14:42:00,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 14:42:00,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 14:42:00,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 14:42:00,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 14:42:00,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 14:42:00,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 14:42:00,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 14:42:00,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 14:42:00,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 14:42:00,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 14:42:00,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 14:42:00,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 14:42:00,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 14:42:00,787 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-14 14:42:00,812 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 14:42:00,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 14:42:00,813 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 14:42:00,813 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 14:42:00,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 14:42:00,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 14:42:00,814 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 14:42:00,814 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-14 14:42:00,815 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-14 14:42:00,815 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-14 14:42:00,815 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-14 14:42:00,816 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-14 14:42:00,816 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-14 14:42:00,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 14:42:00,816 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 14:42:00,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 14:42:00,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 14:42:00,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-14 14:42:00,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-14 14:42:00,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-14 14:42:00,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 14:42:00,817 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-14 14:42:00,817 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 14:42:00,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-14 14:42:00,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 14:42:00,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 14:42:00,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 14:42:00,818 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 14:42:00,819 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-14 14:42:00,819 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c64ddc091da8ed0532dcccc83eb64a4ecc9abe88fb93c047052ca7ac9ea29989 [2023-02-14 14:42:00,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 14:42:01,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 14:42:01,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 14:42:01,024 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 14:42:01,024 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 14:42:01,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c [2023-02-14 14:42:02,047 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 14:42:02,237 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 14:42:02,237 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c [2023-02-14 14:42:02,241 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d3fc1b41/1820c7ebc613420f9905791ecbce9c57/FLAG0f527a0b1 [2023-02-14 14:42:02,250 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d3fc1b41/1820c7ebc613420f9905791ecbce9c57 [2023-02-14 14:42:02,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 14:42:02,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 14:42:02,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 14:42:02,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 14:42:02,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 14:42:02,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:42:02" (1/1) ... [2023-02-14 14:42:02,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@621b1b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:02, skipping insertion in model container [2023-02-14 14:42:02,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:42:02" (1/1) ... [2023-02-14 14:42:02,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 14:42:02,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 14:42:02,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:42:02,346 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 14:42:02,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:42:02,359 INFO L208 MainTranslator]: Completed translation [2023-02-14 14:42:02,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:02 WrapperNode [2023-02-14 14:42:02,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 14:42:02,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 14:42:02,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 14:42:02,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 14:42:02,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:02" (1/1) ... [2023-02-14 14:42:02,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:02" (1/1) ... [2023-02-14 14:42:02,382 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 22 [2023-02-14 14:42:02,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 14:42:02,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 14:42:02,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 14:42:02,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 14:42:02,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:02" (1/1) ... [2023-02-14 14:42:02,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:02" (1/1) ... [2023-02-14 14:42:02,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:02" (1/1) ... [2023-02-14 14:42:02,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:02" (1/1) ... [2023-02-14 14:42:02,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:02" (1/1) ... [2023-02-14 14:42:02,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:02" (1/1) ... [2023-02-14 14:42:02,394 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:02" (1/1) ... [2023-02-14 14:42:02,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:02" (1/1) ... [2023-02-14 14:42:02,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 14:42:02,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 14:42:02,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 14:42:02,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 14:42:02,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:02" (1/1) ... [2023-02-14 14:42:02,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:02,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:02,426 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) [2023-02-14 14:42:02,434 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 [2023-02-14 14:42:02,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 14:42:02,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 14:42:02,493 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 14:42:02,495 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 14:42:02,570 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 14:42:02,575 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 14:42:02,575 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-14 14:42:02,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:42:02 BoogieIcfgContainer [2023-02-14 14:42:02,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 14:42:02,577 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-14 14:42:02,577 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-14 14:42:02,580 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-14 14:42:02,580 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:42:02,581 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.02 02:42:02" (1/3) ... [2023-02-14 14:42:02,581 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57ffc092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 02:42:02, skipping insertion in model container [2023-02-14 14:42:02,581 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:42:02,582 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:02" (2/3) ... [2023-02-14 14:42:02,582 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57ffc092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 02:42:02, skipping insertion in model container [2023-02-14 14:42:02,582 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:42:02,582 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:42:02" (3/3) ... [2023-02-14 14:42:02,583 INFO L332 chiAutomizerObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig3.c [2023-02-14 14:42:02,617 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-14 14:42:02,618 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-14 14:42:02,618 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-14 14:42:02,618 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-14 14:42:02,618 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-14 14:42:02,618 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-14 14:42:02,618 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-14 14:42:02,618 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-14 14:42:02,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:42:02,640 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-14 14:42:02,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:42:02,640 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:42:02,643 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 14:42:02,643 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-14 14:42:02,644 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-14 14:42:02,644 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:42:02,645 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-14 14:42:02,645 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:42:02,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:42:02,646 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 14:42:02,646 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-14 14:42:02,652 INFO L748 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;~x~0 := 0; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1;~x~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L23-2true [2023-02-14 14:42:02,652 INFO L750 eck$LassoCheckResult]: Loop: 4#L23-2true assume !!(~x~0 > 0); 6#L23true assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;assume { :begin_inline_foo } true;havoc foo_#t~post0#1;foo_#t~post0#1 := ~x~0;~x~0 := foo_#t~post0#1 - 1;havoc foo_#t~post0#1; 9#L14true assume { :end_inline_foo } true; 4#L23-2true [2023-02-14 14:42:02,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:42:02,660 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-14 14:42:02,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:42:02,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465207322] [2023-02-14 14:42:02,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:42:02,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:42:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:42:02,721 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:42:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:42:02,740 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:42:02,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:42:02,744 INFO L85 PathProgramCache]: Analyzing trace with hash 40812, now seen corresponding path program 1 times [2023-02-14 14:42:02,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:42:02,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457024200] [2023-02-14 14:42:02,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:42:02,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:42:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:42:02,757 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:42:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:42:02,762 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:42:02,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:42:02,769 INFO L85 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2023-02-14 14:42:02,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:42:02,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612224455] [2023-02-14 14:42:02,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:42:02,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:42:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:42:02,780 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:42:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:42:02,789 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:42:02,864 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:42:02,877 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:42:02,877 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:42:02,877 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:42:02,877 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:42:02,877 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:02,878 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:42:02,878 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:42:02,878 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig3.c_Iteration1_Loop [2023-02-14 14:42:02,878 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:42:02,878 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:42:02,888 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:02,914 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:02,920 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:02,973 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:42:02,974 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:42:02,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:02,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:02,994 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) [2023-02-14 14:42:03,000 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 [2023-02-14 14:42:03,000 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:42:03,001 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:42:03,014 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:42:03,014 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_foo_#t~post0#1=0} Honda state: {ULTIMATE.start_foo_#t~post0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:42:03,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-02-14 14:42:03,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:03,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:03,026 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) [2023-02-14 14:42:03,028 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 [2023-02-14 14:42:03,055 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:42:03,055 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:42:03,074 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 [2023-02-14 14:42:03,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:03,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:03,081 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) [2023-02-14 14:42:03,085 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 [2023-02-14 14:42:03,087 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:42:03,087 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:42:03,105 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:42:03,113 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 [2023-02-14 14:42:03,113 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:42:03,113 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:42:03,113 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:42:03,113 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:42:03,113 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:42:03,113 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:03,113 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:42:03,113 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:42:03,113 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig3.c_Iteration1_Loop [2023-02-14 14:42:03,114 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:42:03,114 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:42:03,115 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:03,120 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:03,128 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:03,157 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:42:03,160 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:42:03,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:03,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:03,182 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) [2023-02-14 14:42:03,184 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 [2023-02-14 14:42:03,186 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 [2023-02-14 14:42:03,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:42:03,193 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:42:03,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:42:03,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:42:03,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:42:03,195 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:42:03,195 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:42:03,212 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:42:03,216 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 [2023-02-14 14:42:03,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:03,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:03,218 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) [2023-02-14 14:42:03,220 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 [2023-02-14 14:42:03,222 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 [2023-02-14 14:42:03,229 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:42:03,229 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:42:03,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:42:03,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:42:03,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:42:03,231 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:42:03,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:42:03,268 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:42:03,284 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:42:03,285 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-14 14:42:03,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:03,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:03,358 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) [2023-02-14 14:42:03,359 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 [2023-02-14 14:42:03,361 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:42:03,361 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:42:03,361 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:42:03,362 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~x~0) = 1*~x~0 Supporting invariants [] [2023-02-14 14:42:03,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-14 14:42:03,367 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:42:03,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:42:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:42:03,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:42:03,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:42:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:42:03,408 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:42:03,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:42:03,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:42:03,502 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-14 14:42:03,509 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:42:03,551 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 28 transitions. Complement of second has 7 states. [2023-02-14 14:42:03,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-14 14:42:03,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:42:03,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2023-02-14 14:42:03,578 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2023-02-14 14:42:03,578 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:42:03,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-14 14:42:03,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:42:03,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2023-02-14 14:42:03,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:42:03,579 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2023-02-14 14:42:03,581 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 14:42:03,582 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2023-02-14 14:42:03,583 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-14 14:42:03,583 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-14 14:42:03,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-14 14:42:03,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-14 14:42:03,584 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:42:03,584 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:42:03,584 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:42:03,584 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-14 14:42:03,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-14 14:42:03,584 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 14:42:03,584 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-14 14:42:03,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.02 02:42:03 BoogieIcfgContainer [2023-02-14 14:42:03,591 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-14 14:42:03,591 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 14:42:03,595 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 14:42:03,595 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 14:42:03,596 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:42:02" (3/4) ... [2023-02-14 14:42:03,597 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-14 14:42:03,598 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 14:42:03,598 INFO L158 Benchmark]: Toolchain (without parser) took 1345.25ms. Allocated memory is still 163.6MB. Free memory was 132.9MB in the beginning and 71.7MB in the end (delta: 61.2MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2023-02-14 14:42:03,598 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:42:03,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 106.72ms. Allocated memory is still 163.6MB. Free memory was 132.6MB in the beginning and 123.7MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-14 14:42:03,599 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.69ms. Allocated memory is still 163.6MB. Free memory was 123.7MB in the beginning and 122.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:42:03,600 INFO L158 Benchmark]: Boogie Preprocessor took 12.19ms. Allocated memory is still 163.6MB. Free memory was 122.2MB in the beginning and 121.4MB in the end (delta: 822.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 14:42:03,600 INFO L158 Benchmark]: RCFGBuilder took 180.39ms. Allocated memory is still 163.6MB. Free memory was 121.1MB in the beginning and 113.0MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 14:42:03,600 INFO L158 Benchmark]: BuchiAutomizer took 1013.72ms. Allocated memory is still 163.6MB. Free memory was 112.7MB in the beginning and 71.9MB in the end (delta: 40.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-02-14 14:42:03,601 INFO L158 Benchmark]: Witness Printer took 6.23ms. Allocated memory is still 163.6MB. Free memory was 71.9MB in the beginning and 71.7MB in the end (delta: 242.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:42:03,602 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 106.72ms. Allocated memory is still 163.6MB. Free memory was 132.6MB in the beginning and 123.7MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.69ms. Allocated memory is still 163.6MB. Free memory was 123.7MB in the beginning and 122.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.19ms. Allocated memory is still 163.6MB. Free memory was 122.2MB in the beginning and 121.4MB in the end (delta: 822.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 180.39ms. Allocated memory is still 163.6MB. Free memory was 121.1MB in the beginning and 113.0MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1013.72ms. Allocated memory is still 163.6MB. Free memory was 112.7MB in the beginning and 71.9MB in the end (delta: 40.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 6.23ms. Allocated memory is still 163.6MB. Free memory was 71.9MB in the beginning and 71.7MB in the end (delta: 242.6kB). 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 x and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 7 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp71 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 51ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-14 14:42:03,631 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 [2023-02-14 14:42:03,820 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