./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/array15_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 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-15/array15_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 00e68ac4f80be925b23bb57b8164307bcf507e35ce753b52ea66514fcb8cc207 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:11:36,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:11:36,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:11:36,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:11:36,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:11:36,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:11:36,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:11:36,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:11:36,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:11:36,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:11:36,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:11:36,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:11:36,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:11:36,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:11:36,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:11:36,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:11:36,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:11:36,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:11:36,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:11:36,495 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:11:36,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:11:36,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:11:36,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:11:36,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:11:36,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:11:36,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:11:36,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:11:36,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:11:36,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:11:36,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:11:36,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:11:36,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:11:36,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:11:36,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:11:36,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:11:36,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:11:36,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:11:36,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:11:36,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:11:36,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:11:36,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:11:36,511 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-28 09:11:36,542 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:11:36,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:11:36,544 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:11:36,544 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:11:36,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:11:36,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:11:36,546 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:11:36,546 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:11:36,546 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:11:36,546 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:11:36,547 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:11:36,547 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:11:36,547 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:11:36,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:11:36,547 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:11:36,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:11:36,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:11:36,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:11:36,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:11:36,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:11:36,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:11:36,548 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:11:36,548 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:11:36,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:11:36,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:11:36,549 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:11:36,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:11:36,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:11:36,550 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:11:36,550 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00e68ac4f80be925b23bb57b8164307bcf507e35ce753b52ea66514fcb8cc207 [2021-12-28 09:11:36,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:11:36,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:11:36,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:11:36,829 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:11:36,830 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:11:36,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/array15_alloca.i [2021-12-28 09:11:36,875 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ad54bd7f/6b9db85eab7042228f5f60259aed34c1/FLAGb072bd35d [2021-12-28 09:11:37,291 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:11:37,292 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/array15_alloca.i [2021-12-28 09:11:37,298 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ad54bd7f/6b9db85eab7042228f5f60259aed34c1/FLAGb072bd35d [2021-12-28 09:11:37,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ad54bd7f/6b9db85eab7042228f5f60259aed34c1 [2021-12-28 09:11:37,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:11:37,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:11:37,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:11:37,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:11:37,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:11:37,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:11:37" (1/1) ... [2021-12-28 09:11:37,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37e0cbc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:11:37, skipping insertion in model container [2021-12-28 09:11:37,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:11:37" (1/1) ... [2021-12-28 09:11:37,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:11:37,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:11:37,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:11:37,553 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:11:37,595 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:11:37,627 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:11:37,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:11:37 WrapperNode [2021-12-28 09:11:37,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:11:37,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:11:37,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:11:37,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:11:37,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:11:37" (1/1) ... [2021-12-28 09:11:37,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:11:37" (1/1) ... [2021-12-28 09:11:37,666 INFO L137 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2021-12-28 09:11:37,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:11:37,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:11:37,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:11:37,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:11:37,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:11:37" (1/1) ... [2021-12-28 09:11:37,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:11:37" (1/1) ... [2021-12-28 09:11:37,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:11:37" (1/1) ... [2021-12-28 09:11:37,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:11:37" (1/1) ... [2021-12-28 09:11:37,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:11:37" (1/1) ... [2021-12-28 09:11:37,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:11:37" (1/1) ... [2021-12-28 09:11:37,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:11:37" (1/1) ... [2021-12-28 09:11:37,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:11:37,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:11:37,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:11:37,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:11:37,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:11:37" (1/1) ... [2021-12-28 09:11:37,704 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:11:37,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:11:37,722 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) [2021-12-28 09:11:37,755 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 [2021-12-28 09:11:37,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 09:11:37,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 09:11:37,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 09:11:37,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 09:11:37,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:11:37,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:11:37,807 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:11:37,808 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:11:37,948 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:11:37,952 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:11:37,952 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 09:11:37,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:11:37 BoogieIcfgContainer [2021-12-28 09:11:37,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:11:37,955 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:11:37,955 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:11:37,957 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:11:37,958 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:11:37,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:11:37" (1/3) ... [2021-12-28 09:11:37,958 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4071b185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:11:37, skipping insertion in model container [2021-12-28 09:11:37,959 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:11:37,959 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:11:37" (2/3) ... [2021-12-28 09:11:37,959 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4071b185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:11:37, skipping insertion in model container [2021-12-28 09:11:37,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:11:37,975 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:11:37" (3/3) ... [2021-12-28 09:11:37,976 INFO L388 chiAutomizerObserver]: Analyzing ICFG array15_alloca.i [2021-12-28 09:11:38,015 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:11:38,015 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:11:38,015 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:11:38,015 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:11:38,016 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:11:38,016 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:11:38,016 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:11:38,016 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:11:38,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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) [2021-12-28 09:11:38,043 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-28 09:11:38,043 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:11:38,043 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:11:38,047 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-28 09:11:38,048 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-28 09:11:38,048 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:11:38,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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) [2021-12-28 09:11:38,050 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-28 09:11:38,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:11:38,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:11:38,051 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-28 09:11:38,051 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-28 09:11:38,056 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet208#1, main_#t~mem209#1, main_#t~post207#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 11#L367true assume !(main_~length~0#1 < 1); 8#L367-2true call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 5#L369true assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 6#L370-3true [2021-12-28 09:11:38,057 INFO L793 eck$LassoCheckResult]: Loop: 6#L370-3true assume !!(main_~i~0#1 < main_~length~0#1);call write~int(main_#t~nondet208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet208#1;call main_#t~mem209#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 13#L372true assume main_#t~mem209#1 < 0;havoc main_#t~mem209#1;call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 16#L370-2true main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 6#L370-3true [2021-12-28 09:11:38,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:11:38,064 INFO L85 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2021-12-28 09:11:38,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:11:38,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406426864] [2021-12-28 09:11:38,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:11:38,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:11:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:11:38,158 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:11:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:11:38,185 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:11:38,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:11:38,189 INFO L85 PathProgramCache]: Analyzing trace with hash 51737, now seen corresponding path program 1 times [2021-12-28 09:11:38,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:11:38,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763707141] [2021-12-28 09:11:38,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:11:38,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:11:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:11:38,212 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:11:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:11:38,225 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:11:38,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:11:38,228 INFO L85 PathProgramCache]: Analyzing trace with hash 176707665, now seen corresponding path program 1 times [2021-12-28 09:11:38,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:11:38,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86898686] [2021-12-28 09:11:38,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:11:38,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:11:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:11:38,250 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:11:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:11:38,271 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:11:38,497 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:11:38,497 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:11:38,497 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:11:38,497 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:11:38,497 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-28 09:11:38,497 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:11:38,497 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:11:38,498 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:11:38,498 INFO L133 ssoRankerPreferences]: Filename of dumped script: array15_alloca.i_Iteration1_Lasso [2021-12-28 09:11:38,498 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:11:38,498 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:11:38,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:11:38,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:11:38,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:11:38,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:11:38,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:11:38,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:11:38,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:11:38,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:11:38,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:11:38,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:11:38,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:11:38,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:11:38,781 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-28 09:11:38,783 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-28 09:11:38,785 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:11:38,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:11:38,786 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) [2021-12-28 09:11:38,795 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 [2021-12-28 09:11:38,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:11:38,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:11:38,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:11:38,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:11:38,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:11:38,806 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:11:38,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:11:38,808 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 [2021-12-28 09:11:38,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:11:38,839 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 [2021-12-28 09:11:38,840 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:11:38,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:11:38,842 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) [2021-12-28 09:11:38,862 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 [2021-12-28 09:11:38,865 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 [2021-12-28 09:11:38,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:11:38,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:11:38,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:11:38,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:11:38,874 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:11:38,874 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:11:38,884 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:11:38,901 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 [2021-12-28 09:11:38,901 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:11:38,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:11:38,902 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) [2021-12-28 09:11:38,903 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 [2021-12-28 09:11:38,907 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 [2021-12-28 09:11:38,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:11:38,913 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:11:38,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:11:38,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:11:38,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:11:38,914 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:11:38,914 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:11:38,929 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:11:38,946 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 [2021-12-28 09:11:38,946 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:11:38,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:11:38,951 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) [2021-12-28 09:11:38,952 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 [2021-12-28 09:11:38,953 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 [2021-12-28 09:11:38,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:11:38,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:11:38,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:11:38,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:11:38,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:11:38,959 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:11:38,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:11:38,979 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:11:38,998 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 [2021-12-28 09:11:38,998 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:11:38,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:11:38,999 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) [2021-12-28 09:11:39,005 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 [2021-12-28 09:11:39,006 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 [2021-12-28 09:11:39,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:11:39,011 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:11:39,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:11:39,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:11:39,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:11:39,012 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:11:39,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:11:39,023 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:11:39,038 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 [2021-12-28 09:11:39,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:11:39,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:11:39,040 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) [2021-12-28 09:11:39,040 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 [2021-12-28 09:11:39,042 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 [2021-12-28 09:11:39,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:11:39,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:11:39,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:11:39,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:11:39,050 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:11:39,050 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:11:39,055 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:11:39,070 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 [2021-12-28 09:11:39,071 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:11:39,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:11:39,072 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) [2021-12-28 09:11:39,073 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 [2021-12-28 09:11:39,073 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 [2021-12-28 09:11:39,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:11:39,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:11:39,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:11:39,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:11:39,082 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:11:39,082 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:11:39,095 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:11:39,113 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 [2021-12-28 09:11:39,113 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:11:39,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:11:39,114 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:11:39,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-28 09:11:39,116 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 [2021-12-28 09:11:39,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:11:39,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:11:39,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:11:39,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:11:39,129 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:11:39,129 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:11:39,143 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-28 09:11:39,192 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2021-12-28 09:11:39,192 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-12-28 09:11:39,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:11:39,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:11:39,194 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2021-12-28 09:11:39,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-28 09:11:39,243 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-28 09:11:39,251 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-28 09:11:39,251 INFO L513 LassoAnalysis]: Proved termination. [2021-12-28 09:11:39,251 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_1, ULTIMATE.start_main_~arr~0#1.offset) = -4*ULTIMATE.start_main_~i~0#1 + 1*v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_1 - 1*ULTIMATE.start_main_~arr~0#1.offset Supporting invariants [] [2021-12-28 09:11:39,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-28 09:11:39,283 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-12-28 09:11:39,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:11:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:11:39,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 09:11:39,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:11:39,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:11:39,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-28 09:11:39,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:11:39,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:11:39,368 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-28 09:11:39,369 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-12-28 09:11:39,404 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) Result 35 states and 50 transitions. Complement of second has 7 states. [2021-12-28 09:11:39,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-28 09:11:39,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-12-28 09:11:39,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2021-12-28 09:11:39,425 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 5 letters. Loop has 3 letters. [2021-12-28 09:11:39,426 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:11:39,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 8 letters. Loop has 3 letters. [2021-12-28 09:11:39,426 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:11:39,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 5 letters. Loop has 6 letters. [2021-12-28 09:11:39,426 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:11:39,427 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 50 transitions. [2021-12-28 09:11:39,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-28 09:11:39,430 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 12 states and 17 transitions. [2021-12-28 09:11:39,431 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-28 09:11:39,431 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-28 09:11:39,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2021-12-28 09:11:39,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:11:39,432 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-12-28 09:11:39,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2021-12-28 09:11:39,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-12-28 09:11:39,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 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) [2021-12-28 09:11:39,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2021-12-28 09:11:39,450 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-12-28 09:11:39,450 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-12-28 09:11:39,450 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:11:39,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2021-12-28 09:11:39,450 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-28 09:11:39,451 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:11:39,451 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:11:39,451 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:11:39,451 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-28 09:11:39,451 INFO L791 eck$LassoCheckResult]: Stem: 113#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 114#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet208#1, main_#t~mem209#1, main_#t~post207#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 121#L367 assume !(main_~length~0#1 < 1); 115#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 116#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 117#L370-3 assume !(main_~i~0#1 < main_~length~0#1); 118#L370-4 main_~j~0#1 := 0; 119#L378-2 [2021-12-28 09:11:39,452 INFO L793 eck$LassoCheckResult]: Loop: 119#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 120#L378 assume main_#t~mem210#1 > 0;havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := main_#t~post211#1 - 1;havoc main_#t~post211#1; 119#L378-2 [2021-12-28 09:11:39,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:11:39,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815510, now seen corresponding path program 1 times [2021-12-28 09:11:39,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:11:39,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461785327] [2021-12-28 09:11:39,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:11:39,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:11:39,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-12-28 09:11:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:11:39,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:11:39,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:11:39,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461785327] [2021-12-28 09:11:39,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461785327] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:11:39,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:11:39,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 09:11:39,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980513769] [2021-12-28 09:11:39,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:11:39,518 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-28 09:11:39,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:11:39,518 INFO L85 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 1 times [2021-12-28 09:11:39,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:11:39,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715045187] [2021-12-28 09:11:39,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:11:39,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:11:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:11:39,523 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:11:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:11:39,526 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:11:39,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:11:39,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 09:11:39,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 09:11:39,585 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2021-12-28 09:11:39,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:11:39,606 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2021-12-28 09:11:39,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 09:11:39,607 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2021-12-28 09:11:39,608 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-28 09:11:39,608 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 19 transitions. [2021-12-28 09:11:39,608 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-12-28 09:11:39,609 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-28 09:11:39,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2021-12-28 09:11:39,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:11:39,609 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2021-12-28 09:11:39,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2021-12-28 09:11:39,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2021-12-28 09:11:39,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 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) [2021-12-28 09:11:39,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-12-28 09:11:39,610 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-12-28 09:11:39,611 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-12-28 09:11:39,611 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-28 09:11:39,611 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2021-12-28 09:11:39,611 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-28 09:11:39,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:11:39,611 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:11:39,612 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:11:39,612 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-28 09:11:39,612 INFO L791 eck$LassoCheckResult]: Stem: 146#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 147#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet208#1, main_#t~mem209#1, main_#t~post207#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 154#L367 assume !(main_~length~0#1 < 1); 148#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 149#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 150#L370-3 assume !!(main_~i~0#1 < main_~length~0#1);call write~int(main_#t~nondet208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet208#1;call main_#t~mem209#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 155#L372 assume !(main_#t~mem209#1 < 0);havoc main_#t~mem209#1; 157#L370-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 156#L370-3 assume !(main_~i~0#1 < main_~length~0#1); 151#L370-4 main_~j~0#1 := 0; 152#L378-2 [2021-12-28 09:11:39,612 INFO L793 eck$LassoCheckResult]: Loop: 152#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 153#L378 assume main_#t~mem210#1 > 0;havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := main_#t~post211#1 - 1;havoc main_#t~post211#1; 152#L378-2 [2021-12-28 09:11:39,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:11:39,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1982565540, now seen corresponding path program 1 times [2021-12-28 09:11:39,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:11:39,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965613154] [2021-12-28 09:11:39,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:11:39,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:11:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:11:39,622 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:11:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:11:39,629 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:11:39,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:11:39,630 INFO L85 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 2 times [2021-12-28 09:11:39,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:11:39,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438087236] [2021-12-28 09:11:39,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:11:39,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:11:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:11:39,634 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:11:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:11:39,636 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:11:39,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:11:39,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1719996831, now seen corresponding path program 1 times [2021-12-28 09:11:39,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:11:39,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284074661] [2021-12-28 09:11:39,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:11:39,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:11:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:11:39,645 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:11:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:11:39,653 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:11:39,899 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:11:39,899 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:11:39,899 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:11:39,899 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:11:39,899 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-28 09:11:39,899 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:11:39,899 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:11:39,899 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:11:39,900 INFO L133 ssoRankerPreferences]: Filename of dumped script: array15_alloca.i_Iteration3_Lasso [2021-12-28 09:11:39,900 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:11:39,900 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:11:39,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:11:39,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:11:39,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:11:39,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:11:39,942 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.IllegalArgumentException at de.uni_freiburg.informatik.ultimate.util.datastructures.ScopedHashMap.put(ScopedHashMap.java:331) at java.base/java.util.AbstractMap.putAll(AbstractMap.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.PureSubstitution.(PureSubstitution.java:81) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Substitution.(Substitution.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Substitution.apply(Substitution.java:59) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceMapReads(MapEliminator.java:518) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:342) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:109) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:280) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:953) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:862) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) 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) [2021-12-28 09:11:39,948 INFO L158 Benchmark]: Toolchain (without parser) took 2634.90ms. Allocated memory was 56.6MB in the beginning and 94.4MB in the end (delta: 37.7MB). Free memory was 32.9MB in the beginning and 65.1MB in the end (delta: -32.2MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2021-12-28 09:11:39,949 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 38.1MB in the beginning and 38.1MB in the end (delta: 39.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:11:39,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.06ms. Allocated memory was 56.6MB in the beginning and 77.6MB in the end (delta: 21.0MB). Free memory was 32.7MB in the beginning and 54.5MB in the end (delta: -21.8MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2021-12-28 09:11:39,952 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.30ms. Allocated memory is still 77.6MB. Free memory was 54.2MB in the beginning and 52.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:11:39,952 INFO L158 Benchmark]: Boogie Preprocessor took 30.31ms. Allocated memory is still 77.6MB. Free memory was 52.6MB in the beginning and 51.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:11:39,953 INFO L158 Benchmark]: RCFGBuilder took 255.89ms. Allocated memory is still 77.6MB. Free memory was 51.3MB in the beginning and 41.7MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-28 09:11:39,953 INFO L158 Benchmark]: BuchiAutomizer took 1992.62ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 41.7MB in the beginning and 65.1MB in the end (delta: -23.4MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2021-12-28 09:11:39,955 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 38.1MB in the beginning and 38.1MB in the end (delta: 39.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.06ms. Allocated memory was 56.6MB in the beginning and 77.6MB in the end (delta: 21.0MB). Free memory was 32.7MB in the beginning and 54.5MB in the end (delta: -21.8MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.30ms. Allocated memory is still 77.6MB. Free memory was 54.2MB in the beginning and 52.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.31ms. Allocated memory is still 77.6MB. Free memory was 52.6MB in the beginning and 51.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 255.89ms. Allocated memory is still 77.6MB. Free memory was 51.3MB in the beginning and 41.7MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1992.62ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 41.7MB in the beginning and 65.1MB in the end (delta: -23.4MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: IllegalArgumentException: null de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: IllegalArgumentException: null: de.uni_freiburg.informatik.ultimate.util.datastructures.ScopedHashMap.put(ScopedHashMap.java:331) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-28 09:11:39,978 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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: IllegalArgumentException: null