./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 6c24879c 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-?-6c24879 [2022-07-13 03:16:56,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 03:16:56,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 03:16:56,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 03:16:56,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 03:16:56,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 03:16:56,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 03:16:56,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 03:16:56,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 03:16:56,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 03:16:56,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 03:16:56,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 03:16:56,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 03:16:56,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 03:16:56,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 03:16:56,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 03:16:56,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 03:16:56,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 03:16:56,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 03:16:56,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 03:16:56,359 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 03:16:56,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 03:16:56,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 03:16:56,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 03:16:56,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 03:16:56,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 03:16:56,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 03:16:56,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 03:16:56,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 03:16:56,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 03:16:56,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 03:16:56,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 03:16:56,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 03:16:56,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 03:16:56,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 03:16:56,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 03:16:56,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 03:16:56,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 03:16:56,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 03:16:56,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 03:16:56,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 03:16:56,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 03:16:56,381 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-13 03:16:56,403 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 03:16:56,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 03:16:56,404 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 03:16:56,404 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 03:16:56,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 03:16:56,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 03:16:56,406 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 03:16:56,406 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 03:16:56,406 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 03:16:56,407 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 03:16:56,407 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 03:16:56,407 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 03:16:56,407 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 03:16:56,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 03:16:56,407 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 03:16:56,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 03:16:56,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 03:16:56,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 03:16:56,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 03:16:56,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 03:16:56,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 03:16:56,409 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 03:16:56,409 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 03:16:56,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 03:16:56,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 03:16:56,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 03:16:56,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 03:16:56,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 03:16:56,411 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 03:16:56,411 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0a1cec22a7e787a87b4a304bdc1225ca64aedbe71e13dd8a6657fba2c77bbf7 [2022-07-13 03:16:56,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 03:16:56,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 03:16:56,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 03:16:56,598 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 03:16:56,600 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 03:16:56,601 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Fig1-alloca.i [2022-07-13 03:16:56,662 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ce663cef/1dc01476603e4b9c81b6b1573edf5522/FLAG8faf7f69c [2022-07-13 03:16:57,052 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 03:16:57,054 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Fig1-alloca.i [2022-07-13 03:16:57,062 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ce663cef/1dc01476603e4b9c81b6b1573edf5522/FLAG8faf7f69c [2022-07-13 03:16:57,071 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ce663cef/1dc01476603e4b9c81b6b1573edf5522 [2022-07-13 03:16:57,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 03:16:57,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 03:16:57,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 03:16:57,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 03:16:57,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 03:16:57,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:16:57" (1/1) ... [2022-07-13 03:16:57,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d93dce0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:16:57, skipping insertion in model container [2022-07-13 03:16:57,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:16:57" (1/1) ... [2022-07-13 03:16:57,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 03:16:57,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 03:16:57,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:16:57,347 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 03:16:57,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:16:57,419 INFO L208 MainTranslator]: Completed translation [2022-07-13 03:16:57,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:16:57 WrapperNode [2022-07-13 03:16:57,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 03:16:57,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 03:16:57,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 03:16:57,421 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 03:16:57,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:16:57" (1/1) ... [2022-07-13 03:16:57,441 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:16:57" (1/1) ... [2022-07-13 03:16:57,458 INFO L137 Inliner]: procedures = 109, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2022-07-13 03:16:57,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 03:16:57,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 03:16:57,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 03:16:57,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 03:16:57,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:16:57" (1/1) ... [2022-07-13 03:16:57,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:16:57" (1/1) ... [2022-07-13 03:16:57,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:16:57" (1/1) ... [2022-07-13 03:16:57,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:16:57" (1/1) ... [2022-07-13 03:16:57,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:16:57" (1/1) ... [2022-07-13 03:16:57,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:16:57" (1/1) ... [2022-07-13 03:16:57,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:16:57" (1/1) ... [2022-07-13 03:16:57,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 03:16:57,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 03:16:57,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 03:16:57,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 03:16:57,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:16:57" (1/1) ... [2022-07-13 03:16:57,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:16:57,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:16:57,520 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) [2022-07-13 03:16:57,532 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 [2022-07-13 03:16:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 03:16:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 03:16:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 03:16:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 03:16:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 03:16:57,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 03:16:57,629 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 03:16:57,630 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 03:16:57,768 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 03:16:57,773 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 03:16:57,773 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 03:16:57,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:16:57 BoogieIcfgContainer [2022-07-13 03:16:57,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 03:16:57,775 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 03:16:57,775 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 03:16:57,782 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 03:16:57,783 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:16:57,783 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 03:16:57" (1/3) ... [2022-07-13 03:16:57,783 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66c095df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:16:57, skipping insertion in model container [2022-07-13 03:16:57,783 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:16:57,784 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:16:57" (2/3) ... [2022-07-13 03:16:57,784 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66c095df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:16:57, skipping insertion in model container [2022-07-13 03:16:57,784 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:16:57,784 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:16:57" (3/3) ... [2022-07-13 03:16:57,785 INFO L354 chiAutomizerObserver]: Analyzing ICFG BrockschmidtCookFuhs-2013CAV-Fig1-alloca.i [2022-07-13 03:16:57,818 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 03:16:57,818 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 03:16:57,818 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 03:16:57,818 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 03:16:57,818 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 03:16:57,818 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 03:16:57,819 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 03:16:57,819 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 03:16:57,821 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) [2022-07-13 03:16:57,832 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-13 03:16:57,832 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:16:57,832 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:16:57,836 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:16:57,836 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-13 03:16:57,836 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 03:16:57,836 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) [2022-07-13 03:16:57,837 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-13 03:16:57,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:16:57,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:16:57,838 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:16:57,838 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-13 03:16:57,842 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 [2022-07-13 03:16:57,842 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 [2022-07-13 03:16:57,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:16:57,850 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-13 03:16:57,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:16:57,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536766769] [2022-07-13 03:16:57,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:16:57,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:16:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:16:57,973 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:16:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:16:58,016 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:16:58,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:16:58,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1144360, now seen corresponding path program 1 times [2022-07-13 03:16:58,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:16:58,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285544633] [2022-07-13 03:16:58,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:16:58,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:16:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:16:58,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:16:58,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:16:58,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285544633] [2022-07-13 03:16:58,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285544633] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:16:58,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:16:58,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 03:16:58,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351204156] [2022-07-13 03:16:58,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:16:58,116 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 03:16:58,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:16:58,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 03:16:58,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 03:16:58,145 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) [2022-07-13 03:16:58,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:16:58,150 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2022-07-13 03:16:58,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 03:16:58,154 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2022-07-13 03:16:58,156 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-13 03:16:58,158 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2022-07-13 03:16:58,159 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-07-13 03:16:58,159 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-07-13 03:16:58,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2022-07-13 03:16:58,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:16:58,160 INFO L369 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-07-13 03:16:58,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2022-07-13 03:16:58,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-07-13 03:16:58,175 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) [2022-07-13 03:16:58,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2022-07-13 03:16:58,177 INFO L392 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-07-13 03:16:58,177 INFO L374 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-07-13 03:16:58,177 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 03:16:58,177 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2022-07-13 03:16:58,178 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-13 03:16:58,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:16:58,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:16:58,179 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:16:58,179 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-13 03:16:58,179 INFO L752 eck$LassoCheckResult]: Stem: 30#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 31#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem9#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~mem10#1, main_#t~mem5#1, main_#t~mem6#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~n~0#1.base, main_~n~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~n~0#1.base, main_~n~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset; 35#L550-3 [2022-07-13 03:16:58,179 INFO L754 eck$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 [2022-07-13 03:16:58,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:16:58,180 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-07-13 03:16:58,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:16:58,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153890627] [2022-07-13 03:16:58,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:16:58,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:16:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:16:58,206 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:16:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:16:58,225 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:16:58,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:16:58,226 INFO L85 PathProgramCache]: Analyzing trace with hash 35468273, now seen corresponding path program 1 times [2022-07-13 03:16:58,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:16:58,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050024112] [2022-07-13 03:16:58,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:16:58,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:16:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:16:58,244 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:16:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:16:58,256 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:16:58,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:16:58,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1806907759, now seen corresponding path program 1 times [2022-07-13 03:16:58,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:16:58,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269798269] [2022-07-13 03:16:58,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:16:58,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:16:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:16:58,287 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:16:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:16:58,305 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:16:58,726 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:16:58,727 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:16:58,727 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:16:58,727 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:16:58,727 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:16:58,727 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:16:58,727 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:16:58,728 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:16:58,728 INFO L133 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-2013CAV-Fig1-alloca.i_Iteration2_Lasso [2022-07-13 03:16:58,728 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:16:58,728 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:16:58,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:16:59,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:16:59,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:16:59,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:16:59,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:16:59,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:16:59,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:16:59,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:16:59,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:16:59,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:16:59,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:16:59,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:16:59,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:16:59,437 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:16:59,440 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:16:59,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:16:59,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:16:59,443 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) [2022-07-13 03:16:59,445 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 [2022-07-13 03:16:59,445 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 [2022-07-13 03:16:59,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:16:59,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:16:59,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:16:59,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:16:59,460 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:16:59,460 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:16:59,475 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:16:59,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-13 03:16:59,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:16:59,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:16:59,497 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) [2022-07-13 03:16:59,498 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 [2022-07-13 03:16:59,499 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 [2022-07-13 03:16:59,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:16:59,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:16:59,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:16:59,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:16:59,509 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:16:59,509 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:16:59,524 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:16:59,542 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 [2022-07-13 03:16:59,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:16:59,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:16:59,543 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) [2022-07-13 03:16:59,544 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 [2022-07-13 03:16:59,546 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 [2022-07-13 03:16:59,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:16:59,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:16:59,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:16:59,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:16:59,553 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:16:59,553 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:16:59,569 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:16:59,587 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 [2022-07-13 03:16:59,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:16:59,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:16:59,588 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) [2022-07-13 03:16:59,589 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 [2022-07-13 03:16:59,591 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 [2022-07-13 03:16:59,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:16:59,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:16:59,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:16:59,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:16:59,599 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:16:59,599 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:16:59,613 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:16:59,628 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 [2022-07-13 03:16:59,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:16:59,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:16:59,630 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) [2022-07-13 03:16:59,630 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 [2022-07-13 03:16:59,632 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 [2022-07-13 03:16:59,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:16:59,638 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:16:59,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:16:59,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:16:59,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:16:59,646 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:16:59,646 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:16:59,647 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:16:59,661 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 [2022-07-13 03:16:59,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:16:59,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:16:59,663 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) [2022-07-13 03:16:59,665 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 [2022-07-13 03:16:59,667 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 [2022-07-13 03:16:59,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:16:59,673 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:16:59,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:16:59,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:16:59,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:16:59,675 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:16:59,675 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:16:59,686 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:16:59,692 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:16:59,692 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 03:16:59,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:16:59,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:16:59,705 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) [2022-07-13 03:16:59,744 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:16:59,744 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:16:59,744 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:16:59,744 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 [] [2022-07-13 03:16:59,745 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 [2022-07-13 03:16:59,786 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 [2022-07-13 03:16:59,848 INFO L293 tatePredicateManager]: 24 out of 24 supporting invariants were superfluous and have been removed [2022-07-13 03:16:59,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:16:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:16:59,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:16:59,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:16:59,922 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 [2022-07-13 03:16:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:16:59,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 03:16:59,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:16:59,993 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-07-13 03:16:59,994 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 [2022-07-13 03:17:00,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:17:00,108 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 [2022-07-13 03:17:00,109 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) [2022-07-13 03:17:00,142 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. [2022-07-13 03:17:00,142 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 [2022-07-13 03:17:00,144 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) [2022-07-13 03:17:00,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2022-07-13 03:17:00,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 5 letters. [2022-07-13 03:17:00,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:17:00,145 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:17:00,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:17:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:17:00,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:17:00,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:17:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:17:00,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 03:17:00,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:17:00,211 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-07-13 03:17:00,212 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 [2022-07-13 03:17:00,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:17:00,305 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 [2022-07-13 03:17:00,305 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) [2022-07-13 03:17:00,322 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. [2022-07-13 03:17:00,323 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 [2022-07-13 03:17:00,324 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) [2022-07-13 03:17:00,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2022-07-13 03:17:00,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 5 letters. [2022-07-13 03:17:00,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:17:00,325 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:17:00,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:17:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:17:00,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:17:00,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:17:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:17:00,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 03:17:00,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:17:00,375 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-07-13 03:17:00,375 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 [2022-07-13 03:17:00,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:17:00,468 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 [2022-07-13 03:17:00,468 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) [2022-07-13 03:17:00,483 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. [2022-07-13 03:17:00,484 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 [2022-07-13 03:17:00,484 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) [2022-07-13 03:17:00,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2022-07-13 03:17:00,485 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 2 letters. Loop has 5 letters. [2022-07-13 03:17:00,485 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:17:00,485 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:17:00,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:17:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:17:00,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:17:00,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:17:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:17:00,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 03:17:00,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:17:00,534 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-07-13 03:17:00,535 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 [2022-07-13 03:17:00,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:17:00,607 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 [2022-07-13 03:17:00,607 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) [2022-07-13 03:17:00,610 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. [2022-07-13 03:17:00,611 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 [2022-07-13 03:17:00,611 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) [2022-07-13 03:17:00,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 9 transitions. [2022-07-13 03:17:00,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 9 transitions. Stem has 2 letters. Loop has 5 letters. [2022-07-13 03:17:00,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:17:00,612 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:17:00,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:17:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:17:00,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:17:00,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:17:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:17:00,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 03:17:00,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:17:00,659 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-07-13 03:17:00,659 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 [2022-07-13 03:17:00,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:17:00,719 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 [2022-07-13 03:17:00,720 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) [2022-07-13 03:17:00,752 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 [2022-07-13 03:17:00,752 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 [2022-07-13 03:17:00,753 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) [2022-07-13 03:17:00,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2022-07-13 03:17:00,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 2 letters. Loop has 5 letters. [2022-07-13 03:17:00,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:17:00,753 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:17:00,754 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) [2022-07-13 03:17:00,756 INFO L158 Benchmark]: Toolchain (without parser) took 3680.98ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 50.4MB in the beginning and 57.3MB in the end (delta: -7.0MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2022-07-13 03:17:00,756 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 83.9MB. Free memory was 53.9MB in the beginning and 53.9MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:17:00,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.96ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 50.1MB in the beginning and 69.6MB in the end (delta: -19.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-13 03:17:00,757 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.38ms. Allocated memory is still 100.7MB. Free memory was 69.6MB in the beginning and 68.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:17:00,757 INFO L158 Benchmark]: Boogie Preprocessor took 33.46ms. Allocated memory is still 100.7MB. Free memory was 68.0MB in the beginning and 66.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:17:00,758 INFO L158 Benchmark]: RCFGBuilder took 281.32ms. Allocated memory is still 100.7MB. Free memory was 66.9MB in the beginning and 56.9MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 03:17:00,758 INFO L158 Benchmark]: BuchiAutomizer took 2980.45ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 56.4MB in the beginning and 57.3MB in the end (delta: -940.3kB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2022-07-13 03:17:00,760 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 83.9MB. Free memory was 53.9MB in the beginning and 53.9MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.96ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 50.1MB in the beginning and 69.6MB in the end (delta: -19.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.38ms. Allocated memory is still 100.7MB. Free memory was 69.6MB in the beginning and 68.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.46ms. Allocated memory is still 100.7MB. Free memory was 68.0MB in the beginning and 66.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 281.32ms. Allocated memory is still 100.7MB. Free memory was 66.9MB in the beginning and 56.9MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2980.45ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 56.4MB in the beginning and 57.3MB in the end (delta: -940.3kB). Peak memory consumption was 20.5MB. 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. [2022-07-13 03:17:00,783 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