./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Fig1-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 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-memory-alloca/BrockschmidtCookFuhs-2013CAV-Fig1-alloca.i -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 e0a1cec22a7e787a87b4a304bdc1225ca64aedbe71e13dd8a6657fba2c77bbf7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:58:25,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:58:25,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:58:25,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:58:25,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:58:25,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:58:25,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:58:25,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:58:25,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:58:25,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:58:25,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:58:25,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:58:25,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:58:25,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:58:25,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:58:25,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:58:25,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:58:25,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:58:25,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:58:25,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:58:25,373 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:58:25,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:58:25,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:58:25,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:58:25,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:58:25,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:58:25,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:58:25,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:58:25,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:58:25,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:58:25,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:58:25,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:58:25,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:58:25,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:58:25,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:58:25,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:58:25,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:58:25,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:58:25,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:58:25,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:58:25,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:58:25,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:58:25,392 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-14 14:58:25,416 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:58:25,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:58:25,417 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:58:25,417 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:58:25,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:58:25,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:58:25,419 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:58:25,419 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 14:58:25,419 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 14:58:25,420 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 14:58:25,420 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 14:58:25,420 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 14:58:25,420 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 14:58:25,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:58:25,421 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:58:25,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:58:25,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:58:25,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 14:58:25,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 14:58:25,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 14:58:25,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:58:25,422 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 14:58:25,422 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:58:25,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 14:58:25,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:58:25,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:58:25,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:58:25,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:58:25,424 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 14:58:25,424 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0a1cec22a7e787a87b4a304bdc1225ca64aedbe71e13dd8a6657fba2c77bbf7 [2022-07-14 14:58:25,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:58:25,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:58:25,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:58:25,646 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:58:25,647 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:58:25,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Fig1-alloca.i [2022-07-14 14:58:25,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5da059927/23575d69f2a645189389ae5b55f212be/FLAGcddc22817 [2022-07-14 14:58:26,132 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:58:26,135 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Fig1-alloca.i [2022-07-14 14:58:26,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5da059927/23575d69f2a645189389ae5b55f212be/FLAGcddc22817 [2022-07-14 14:58:26,165 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5da059927/23575d69f2a645189389ae5b55f212be [2022-07-14 14:58:26,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:58:26,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:58:26,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:58:26,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:58:26,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:58:26,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:58:26" (1/1) ... [2022-07-14 14:58:26,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37387554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:58:26, skipping insertion in model container [2022-07-14 14:58:26,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:58:26" (1/1) ... [2022-07-14 14:58:26,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:58:26,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:58:26,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:58:26,462 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:58:26,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:58:26,516 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:58:26,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:58:26 WrapperNode [2022-07-14 14:58:26,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:58:26,517 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:58:26,517 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:58:26,517 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:58:26,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:58:26" (1/1) ... [2022-07-14 14:58:26,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:58:26" (1/1) ... [2022-07-14 14:58:26,546 INFO L137 Inliner]: procedures = 109, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2022-07-14 14:58:26,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:58:26,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:58:26,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:58:26,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:58:26,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:58:26" (1/1) ... [2022-07-14 14:58:26,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:58:26" (1/1) ... [2022-07-14 14:58:26,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:58:26" (1/1) ... [2022-07-14 14:58:26,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:58:26" (1/1) ... [2022-07-14 14:58:26,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:58:26" (1/1) ... [2022-07-14 14:58:26,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:58:26" (1/1) ... [2022-07-14 14:58:26,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:58:26" (1/1) ... [2022-07-14 14:58:26,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:58:26,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:58:26,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:58:26,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:58:26,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:58:26" (1/1) ... [2022-07-14 14:58:26,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:58:26,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:58:26,590 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) [2022-07-14 14:58:26,598 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 [2022-07-14 14:58:26,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:58:26,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:58:26,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:58:26,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:58:26,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:58:26,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:58:26,670 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:58:26,671 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:58:26,782 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:58:26,785 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:58:26,786 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 14:58:26,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:58:26 BoogieIcfgContainer [2022-07-14 14:58:26,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:58:26,788 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 14:58:26,788 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 14:58:26,790 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 14:58:26,804 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:58:26,804 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 02:58:26" (1/3) ... [2022-07-14 14:58:26,805 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61f69ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 02:58:26, skipping insertion in model container [2022-07-14 14:58:26,805 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:58:26,805 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:58:26" (2/3) ... [2022-07-14 14:58:26,805 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61f69ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 02:58:26, skipping insertion in model container [2022-07-14 14:58:26,805 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:58:26,805 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:58:26" (3/3) ... [2022-07-14 14:58:26,806 INFO L354 chiAutomizerObserver]: Analyzing ICFG BrockschmidtCookFuhs-2013CAV-Fig1-alloca.i [2022-07-14 14:58:26,859 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 14:58:26,859 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 14:58:26,859 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 14:58:26,859 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 14:58:26,859 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 14:58:26,859 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 14:58:26,860 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 14:58:26,860 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 14:58:26,876 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:58:26,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-14 14:58:26,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:58:26,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:58:26,906 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 14:58:26,919 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-14 14:58:26,919 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 14:58:26,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:58:26,920 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-14 14:58:26,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:58:26,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:58:26,921 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 14:58:26,921 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-14 14:58:26,925 INFO L752 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem9#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~mem10#1, main_#t~mem5#1, main_#t~mem6#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~n~0#1.base, main_~n~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~n~0#1.base, main_~n~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset; 8#L550-3true [2022-07-14 14:58:26,925 INFO L754 eck$LassoCheckResult]: Loop: 8#L550-3true call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);call main_#t~mem6#1 := read~int(main_~n~0#1.base, main_~n~0#1.offset, 4); 10#L550-1true assume !!(main_#t~mem5#1 < main_#t~mem6#1);havoc main_#t~mem5#1;havoc main_#t~mem6#1;call write~int(0, main_~j~0#1.base, main_~j~0#1.offset, 4); 4#L552-3true assume !true; 5#L552-4true call main_#t~mem10#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);call write~int(1 + main_#t~mem10#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem10#1; 8#L550-3true [2022-07-14 14:58:26,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:58:26,935 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-14 14:58:26,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:58:26,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831905005] [2022-07-14 14:58:26,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:58:26,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:58:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:58:27,036 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:58:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:58:27,068 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:58:27,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:58:27,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1144360, now seen corresponding path program 1 times [2022-07-14 14:58:27,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:58:27,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238447054] [2022-07-14 14:58:27,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:58:27,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:58:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:58:27,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:58:27,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:58:27,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238447054] [2022-07-14 14:58:27,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238447054] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:58:27,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:58:27,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:58:27,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130243245] [2022-07-14 14:58:27,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:58:27,144 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 14:58:27,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:58:27,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-14 14:58:27,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 14:58:27,165 INFO L87 Difference]: Start difference. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-07-14 14:58:27,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:58:27,169 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2022-07-14 14:58:27,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-14 14:58:27,173 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2022-07-14 14:58:27,175 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-14 14:58:27,176 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2022-07-14 14:58:27,177 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-07-14 14:58:27,177 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-07-14 14:58:27,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2022-07-14 14:58:27,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 14:58:27,178 INFO L369 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-07-14 14:58:27,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2022-07-14 14:58:27,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-07-14 14:58:27,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:58:27,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2022-07-14 14:58:27,193 INFO L392 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-07-14 14:58:27,193 INFO L374 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-07-14 14:58:27,193 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 14:58:27,193 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2022-07-14 14:58:27,194 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-14 14:58:27,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:58:27,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:58:27,195 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 14:58:27,195 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-14 14:58:27,195 INFO L752 eck$LassoCheckResult]: Stem: 30#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 31#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem9#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~mem10#1, main_#t~mem5#1, main_#t~mem6#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~n~0#1.base, main_~n~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~n~0#1.base, main_~n~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset; 35#L550-3 [2022-07-14 14:58:27,195 INFO L754 eck$LassoCheckResult]: Loop: 35#L550-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);call main_#t~mem6#1 := read~int(main_~n~0#1.base, main_~n~0#1.offset, 4); 36#L550-1 assume !!(main_#t~mem5#1 < main_#t~mem6#1);havoc main_#t~mem5#1;havoc main_#t~mem6#1;call write~int(0, main_~j~0#1.base, main_~j~0#1.offset, 4); 32#L552-3 call main_#t~mem7#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 33#L552-1 assume !(main_#t~mem7#1 <= main_#t~mem8#1);havoc main_#t~mem7#1;havoc main_#t~mem8#1; 34#L552-4 call main_#t~mem10#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);call write~int(1 + main_#t~mem10#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem10#1; 35#L550-3 [2022-07-14 14:58:27,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:58:27,196 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-07-14 14:58:27,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:58:27,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741997013] [2022-07-14 14:58:27,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:58:27,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:58:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:58:27,209 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:58:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:58:27,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:58:27,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:58:27,219 INFO L85 PathProgramCache]: Analyzing trace with hash 35468273, now seen corresponding path program 1 times [2022-07-14 14:58:27,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:58:27,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414338228] [2022-07-14 14:58:27,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:58:27,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:58:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:58:27,236 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:58:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:58:27,250 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:58:27,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:58:27,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1806907759, now seen corresponding path program 1 times [2022-07-14 14:58:27,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:58:27,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847706644] [2022-07-14 14:58:27,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:58:27,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:58:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:58:27,277 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:58:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:58:27,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:58:27,667 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:58:27,667 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:58:27,667 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:58:27,667 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:58:27,668 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 14:58:27,668 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:58:27,668 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:58:27,668 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:58:27,668 INFO L133 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-2013CAV-Fig1-alloca.i_Iteration2_Lasso [2022-07-14 14:58:27,668 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:58:27,668 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:58:27,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:58:28,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:58:28,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:58:28,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:58:28,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:58:28,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:58:28,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:58:28,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:58:28,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:58:28,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:58:28,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:58:28,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:58:28,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:58:28,346 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:58:28,349 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 14:58:28,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:58:28,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:58:28,351 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) [2022-07-14 14:58:28,354 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 [2022-07-14 14:58:28,357 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 [2022-07-14 14:58:28,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:58:28,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:58:28,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:58:28,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:58:28,368 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:58:28,368 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:58:28,385 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:58:28,410 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 [2022-07-14 14:58:28,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:58:28,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:58:28,412 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) [2022-07-14 14:58:28,413 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 [2022-07-14 14:58:28,420 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 [2022-07-14 14:58:28,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:58:28,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:58:28,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:58:28,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:58:28,429 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:58:28,429 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:58:28,440 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:58:28,457 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 [2022-07-14 14:58:28,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:58:28,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:58:28,459 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) [2022-07-14 14:58:28,459 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 [2022-07-14 14:58:28,461 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 [2022-07-14 14:58:28,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:58:28,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:58:28,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:58:28,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:58:28,468 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:58:28,469 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:58:28,471 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:58:28,488 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 [2022-07-14 14:58:28,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:58:28,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:58:28,489 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) [2022-07-14 14:58:28,490 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 [2022-07-14 14:58:28,491 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 [2022-07-14 14:58:28,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:58:28,496 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:58:28,496 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:58:28,496 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:58:28,499 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:58:28,499 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:58:28,511 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:58:28,528 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 [2022-07-14 14:58:28,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:58:28,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:58:28,529 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) [2022-07-14 14:58:28,530 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 [2022-07-14 14:58:28,532 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 [2022-07-14 14:58:28,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:58:28,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:58:28,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:58:28,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:58:28,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:58:28,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 14:58:28,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:58:28,548 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:58:28,562 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 [2022-07-14 14:58:28,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:58:28,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:58:28,563 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) [2022-07-14 14:58:28,564 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 [2022-07-14 14:58:28,566 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:58:28,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:58:28,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:58:28,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:58:28,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:58:28,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:58:28,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 14:58:28,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:58:28,574 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 14:58:28,581 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-14 14:58:28,581 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-14 14:58:28,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:58:28,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:58:28,583 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) [2022-07-14 14:58:28,584 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 [2022-07-14 14:58:28,585 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 14:58:28,585 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-14 14:58:28,585 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 14:58:28,585 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~i~0#1.base) ULTIMATE.start_main_~i~0#1.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~i~0#1.base) ULTIMATE.start_main_~i~0#1.offset)_1 Supporting invariants [] [2022-07-14 14:58:28,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-07-14 14:58:28,673 INFO L293 tatePredicateManager]: 24 out of 24 supporting invariants were superfluous and have been removed [2022-07-14 14:58:28,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:58:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:58:28,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:58:28,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:58:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:58:28,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 14:58:28,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:58:28,774 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-07-14 14:58:28,779 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 28 [2022-07-14 14:58:28,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:58:28,908 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-07-14 14:58:28,909 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:58:28,941 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 18 transitions. Complement of second has 7 states. [2022-07-14 14:58:28,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-14 14:58:28,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:58:28,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2022-07-14 14:58:28,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 5 letters. [2022-07-14 14:58:28,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:58:28,944 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-14 14:58:28,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:58:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:58:28,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:58:28,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:58:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:58:28,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 14:58:28,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:58:29,010 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-07-14 14:58:29,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 28 [2022-07-14 14:58:29,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:58:29,117 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2022-07-14 14:58:29,117 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:58:29,133 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 18 transitions. Complement of second has 7 states. [2022-07-14 14:58:29,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-14 14:58:29,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:58:29,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2022-07-14 14:58:29,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 5 letters. [2022-07-14 14:58:29,136 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:58:29,136 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-14 14:58:29,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:58:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:58:29,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:58:29,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:58:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:58:29,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 14:58:29,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:58:29,204 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 [2022-07-14 14:58:29,217 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-07-14 14:58:29,217 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 28 [2022-07-14 14:58:29,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:58:29,309 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-07-14 14:58:29,309 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:58:29,327 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 18 transitions. Complement of second has 6 states. [2022-07-14 14:58:29,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-14 14:58:29,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:58:29,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2022-07-14 14:58:29,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 2 letters. Loop has 5 letters. [2022-07-14 14:58:29,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:58:29,331 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-14 14:58:29,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:58:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:58:29,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:58:29,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:58:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:58:29,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 14:58:29,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:58:29,375 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-07-14 14:58:29,375 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 28 [2022-07-14 14:58:29,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:58:29,445 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2022-07-14 14:58:29,445 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:58:29,448 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 9 states and 10 transitions. Complement of second has 2 states. [2022-07-14 14:58:29,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2022-07-14 14:58:29,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:58:29,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 9 transitions. [2022-07-14 14:58:29,449 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 9 transitions. Stem has 2 letters. Loop has 5 letters. [2022-07-14 14:58:29,449 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:58:29,449 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-14 14:58:29,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:58:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:58:29,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:58:29,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:58:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:58:29,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 14:58:29,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:58:29,488 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-07-14 14:58:29,489 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 28 [2022-07-14 14:58:29,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:58:29,558 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-07-14 14:58:29,559 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:58:29,592 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 59 states and 90 transitions. Complement of second has 28 states 6 powerset states22 rank states. The highest rank that occured is 5 [2022-07-14 14:58:29,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-14 14:58:29,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:58:29,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2022-07-14 14:58:29,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 2 letters. Loop has 5 letters. [2022-07-14 14:58:29,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:58:29,595 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-14 14:58:29,595 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: no settings was sufficient at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.BuchiAutomatonCegarLoop.refineBuchi(BuchiAutomatonCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.BuchiAutomatonCegarLoop.refineBuchi(BuchiAutomatonCegarLoop.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.refineBuchiAndReportRankingFunction(AbstractBuchiCegarLoop.java:401) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.runCegarLoop(AbstractBuchiCegarLoop.java:358) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:363) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-14 14:58:29,598 INFO L158 Benchmark]: Toolchain (without parser) took 3429.69ms. Allocated memory was 107.0MB in the beginning and 161.5MB in the end (delta: 54.5MB). Free memory was 77.1MB in the beginning and 77.7MB in the end (delta: -578.1kB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. [2022-07-14 14:58:29,598 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 107.0MB. Free memory is still 63.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:58:29,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.66ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 77.0MB in the beginning and 104.6MB in the end (delta: -27.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 14:58:29,599 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.60ms. Allocated memory is still 134.2MB. Free memory was 104.6MB in the beginning and 102.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:58:29,599 INFO L158 Benchmark]: Boogie Preprocessor took 20.42ms. Allocated memory is still 134.2MB. Free memory was 102.5MB in the beginning and 101.6MB in the end (delta: 948.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:58:29,600 INFO L158 Benchmark]: RCFGBuilder took 219.07ms. Allocated memory is still 134.2MB. Free memory was 101.6MB in the beginning and 91.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-14 14:58:29,600 INFO L158 Benchmark]: BuchiAutomizer took 2809.67ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 91.1MB in the beginning and 77.7MB in the end (delta: 13.4MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. [2022-07-14 14:58:29,602 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 107.0MB. Free memory is still 63.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.66ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 77.0MB in the beginning and 104.6MB in the end (delta: -27.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.60ms. Allocated memory is still 134.2MB. Free memory was 104.6MB in the beginning and 102.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.42ms. Allocated memory is still 134.2MB. Free memory was 102.5MB in the beginning and 101.6MB in the end (delta: 948.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 219.07ms. Allocated memory is still 134.2MB. Free memory was 101.6MB in the beginning and 91.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2809.67ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 91.1MB in the beginning and 77.7MB in the end (delta: 13.4MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: no settings was sufficient de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: no settings was sufficient: de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.BuchiAutomatonCegarLoop.refineBuchi(BuchiAutomatonCegarLoop.java:325) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-07-14 14:58:29,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: no settings was sufficient