./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/aviad_true-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 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/aviad_true-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 da65a08be7a694e995d17e45362055fa5f60ddf40e08c5ba36204464b294ccf0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 14:27:03,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 14:27:03,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 14:27:03,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 14:27:03,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 14:27:03,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 14:27:03,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 14:27:03,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 14:27:03,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 14:27:03,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 14:27:03,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 14:27:03,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 14:27:03,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 14:27:03,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 14:27:03,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 14:27:03,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 14:27:03,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 14:27:03,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 14:27:03,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 14:27:03,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 14:27:03,789 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 14:27:03,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 14:27:03,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 14:27:03,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 14:27:03,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 14:27:03,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 14:27:03,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 14:27:03,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 14:27:03,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 14:27:03,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 14:27:03,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 14:27:03,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 14:27:03,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 14:27:03,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 14:27:03,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 14:27:03,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 14:27:03,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 14:27:03,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 14:27:03,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 14:27:03,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 14:27:03,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 14:27:03,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 14:27:03,806 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-23 14:27:03,824 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 14:27:03,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 14:27:03,824 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 14:27:03,825 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 14:27:03,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 14:27:03,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 14:27:03,826 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 14:27:03,826 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 14:27:03,826 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 14:27:03,827 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 14:27:03,827 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 14:27:03,827 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 14:27:03,827 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 14:27:03,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 14:27:03,828 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 14:27:03,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 14:27:03,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 14:27:03,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 14:27:03,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 14:27:03,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 14:27:03,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 14:27:03,830 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 14:27:03,830 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 14:27:03,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 14:27:03,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 14:27:03,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 14:27:03,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 14:27:03,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 14:27:03,831 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 14:27:03,832 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da65a08be7a694e995d17e45362055fa5f60ddf40e08c5ba36204464b294ccf0 [2022-07-23 14:27:04,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 14:27:04,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 14:27:04,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 14:27:04,053 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 14:27:04,054 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 14:27:04,055 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/aviad_true-alloca.i [2022-07-23 14:27:04,098 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94ebff9d4/00662eed28d045b58f8510cadd9e7382/FLAG71f210271 [2022-07-23 14:27:04,491 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 14:27:04,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/aviad_true-alloca.i [2022-07-23 14:27:04,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94ebff9d4/00662eed28d045b58f8510cadd9e7382/FLAG71f210271 [2022-07-23 14:27:04,511 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94ebff9d4/00662eed28d045b58f8510cadd9e7382 [2022-07-23 14:27:04,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 14:27:04,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 14:27:04,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 14:27:04,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 14:27:04,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 14:27:04,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:27:04" (1/1) ... [2022-07-23 14:27:04,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ad4c51f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:27:04, skipping insertion in model container [2022-07-23 14:27:04,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:27:04" (1/1) ... [2022-07-23 14:27:04,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 14:27:04,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 14:27:04,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:27:04,778 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 14:27:04,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:27:04,835 INFO L208 MainTranslator]: Completed translation [2022-07-23 14:27:04,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:27:04 WrapperNode [2022-07-23 14:27:04,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 14:27:04,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 14:27:04,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 14:27:04,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 14:27:04,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:27:04" (1/1) ... [2022-07-23 14:27:04,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:27:04" (1/1) ... [2022-07-23 14:27:04,872 INFO L137 Inliner]: procedures = 111, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2022-07-23 14:27:04,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 14:27:04,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 14:27:04,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 14:27:04,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 14:27:04,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:27:04" (1/1) ... [2022-07-23 14:27:04,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:27:04" (1/1) ... [2022-07-23 14:27:04,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:27:04" (1/1) ... [2022-07-23 14:27:04,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:27:04" (1/1) ... [2022-07-23 14:27:04,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:27:04" (1/1) ... [2022-07-23 14:27:04,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:27:04" (1/1) ... [2022-07-23 14:27:04,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:27:04" (1/1) ... [2022-07-23 14:27:04,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 14:27:04,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 14:27:04,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 14:27:04,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 14:27:04,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:27:04" (1/1) ... [2022-07-23 14:27:04,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:27:04,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:27:04,928 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) [2022-07-23 14:27:04,938 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 [2022-07-23 14:27:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 14:27:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 14:27:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 14:27:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 14:27:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 14:27:04,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 14:27:05,030 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 14:27:05,031 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 14:27:05,194 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 14:27:05,198 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 14:27:05,198 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 14:27:05,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:27:05 BoogieIcfgContainer [2022-07-23 14:27:05,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 14:27:05,200 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 14:27:05,200 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 14:27:05,202 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 14:27:05,202 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:27:05,202 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 02:27:04" (1/3) ... [2022-07-23 14:27:05,203 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39fcce9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:27:05, skipping insertion in model container [2022-07-23 14:27:05,203 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:27:05,203 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:27:04" (2/3) ... [2022-07-23 14:27:05,203 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39fcce9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:27:05, skipping insertion in model container [2022-07-23 14:27:05,203 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:27:05,204 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:27:05" (3/3) ... [2022-07-23 14:27:05,204 INFO L354 chiAutomizerObserver]: Analyzing ICFG aviad_true-alloca.i [2022-07-23 14:27:05,240 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 14:27:05,241 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 14:27:05,241 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 14:27:05,241 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 14:27:05,241 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 14:27:05,241 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 14:27:05,241 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 14:27:05,241 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 14:27:05,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2022-07-23 14:27:05,258 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-23 14:27:05,258 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:27:05,258 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:27:05,262 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-23 14:27:05,262 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-23 14:27:05,262 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 14:27:05,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2022-07-23 14:27:05,264 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-23 14:27:05,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:27:05,264 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:27:05,264 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-23 14:27:05,265 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-23 14:27:05,268 INFO L752 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; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~ret14#1, main_~x~0#1, main_~count~1#1;main_~x~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;assume { :begin_inline_f } true;f_#in~a#1 := main_~x~0#1;havoc f_#res#1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~mem6#1, f_#t~mem7#1, f_#t~mem8#1, f_#t~mem9#1, f_#t~mem10#1, f_#t~post11#1, f_#t~mem5#1, f_#t~mem12#1, f_~a#1, f_~a_ref~0#1.base, f_~a_ref~0#1.offset, f_~tmp~0#1.base, f_~tmp~0#1.offset, f_~count~0#1.base, f_~count~0#1.offset;f_~a#1 := f_#in~a#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~a_ref~0#1.base, f_~a_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~tmp~0#1.base, f_~tmp~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~count~0#1.base, f_~count~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call write~int(f_~a#1, f_~a_ref~0#1.base, f_~a_ref~0#1.offset, 4);call write~int(0, f_~tmp~0#1.base, f_~tmp~0#1.offset, 4);call write~int(0, f_~count~0#1.base, f_~count~0#1.offset, 4); 7#L554-3true [2022-07-23 14:27:05,269 INFO L754 eck$LassoCheckResult]: Loop: 7#L554-3true call f_#t~mem5#1 := read~int(f_~a_ref~0#1.base, f_~a_ref~0#1.offset, 4); 9#L554-1true assume !!(f_#t~mem5#1 > 1);havoc f_#t~mem5#1;call f_#t~mem6#1 := read~int(f_~a_ref~0#1.base, f_~a_ref~0#1.offset, 4);call write~int((if f_#t~mem6#1 < 0 && 0 != f_#t~mem6#1 % 2 then f_#t~mem6#1 % 2 - 2 else f_#t~mem6#1 % 2), f_~tmp~0#1.base, f_~tmp~0#1.offset, 4);havoc f_#t~mem6#1;call f_#t~mem7#1 := read~int(f_~tmp~0#1.base, f_~tmp~0#1.offset, 4); 5#L556true assume !(0 == f_#t~mem7#1);havoc f_#t~mem7#1;call f_#t~mem9#1 := read~int(f_~a_ref~0#1.base, f_~a_ref~0#1.offset, 4);call write~int(f_#t~mem9#1 - 1, f_~a_ref~0#1.base, f_~a_ref~0#1.offset, 4);havoc f_#t~mem9#1; 8#L556-2true call f_#t~mem10#1 := read~int(f_~count~0#1.base, f_~count~0#1.offset, 4);f_#t~post11#1 := f_#t~mem10#1;call write~int(1 + f_#t~post11#1, f_~count~0#1.base, f_~count~0#1.offset, 4);havoc f_#t~mem10#1;havoc f_#t~post11#1; 7#L554-3true [2022-07-23 14:27:05,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:27:05,274 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-23 14:27:05,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:27:05,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014592984] [2022-07-23 14:27:05,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:27:05,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:27:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:27:05,392 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:27:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:27:05,447 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:27:05,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:27:05,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1144136, now seen corresponding path program 1 times [2022-07-23 14:27:05,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:27:05,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730418979] [2022-07-23 14:27:05,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:27:05,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:27:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:27:05,494 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:27:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:27:05,524 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:27:05,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:27:05,530 INFO L85 PathProgramCache]: Analyzing trace with hash 889571338, now seen corresponding path program 1 times [2022-07-23 14:27:05,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:27:05,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221071054] [2022-07-23 14:27:05,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:27:05,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:27:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:27:05,584 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:27:05,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:27:05,625 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:27:06,237 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:27:06,237 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:27:06,237 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:27:06,237 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:27:06,238 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:27:06,238 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:27:06,238 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:27:06,238 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:27:06,238 INFO L133 ssoRankerPreferences]: Filename of dumped script: aviad_true-alloca.i_Iteration1_Lasso [2022-07-23 14:27:06,238 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:27:06,238 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:27:06,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:27:06,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:27:06,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:27:06,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:27:06,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:27:06,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:27:06,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:27:06,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:27:06,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:27:06,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:27:06,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:27:06,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:27:06,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:27:06,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:27:06,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:27:06,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:27:06,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:27:06,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:27:06,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:27:07,078 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:27:07,081 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:27:07,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:27:07,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:27:07,083 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) [2022-07-23 14:27:07,088 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 [2022-07-23 14:27:07,089 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 [2022-07-23 14:27:07,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:27:07,095 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:27:07,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:27:07,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:27:07,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:27:07,097 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:27:07,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:27:07,105 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:27:07,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-23 14:27:07,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:27:07,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:27:07,124 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) [2022-07-23 14:27:07,125 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 [2022-07-23 14:27:07,126 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 [2022-07-23 14:27:07,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:27:07,132 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:27:07,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:27:07,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:27:07,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:27:07,132 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:27:07,132 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:27:07,147 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:27:07,162 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 [2022-07-23 14:27:07,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:27:07,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:27:07,164 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) [2022-07-23 14:27:07,164 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 [2022-07-23 14:27:07,166 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 [2022-07-23 14:27:07,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:27:07,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:27:07,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:27:07,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:27:07,175 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:27:07,175 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:27:07,185 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:27:07,206 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 [2022-07-23 14:27:07,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:27:07,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:27:07,208 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) [2022-07-23 14:27:07,209 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 [2022-07-23 14:27:07,211 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:27:07,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:27:07,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:27:07,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:27:07,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:27:07,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:27:07,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:27:07,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:27:07,231 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:27:07,247 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 [2022-07-23 14:27:07,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:27:07,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:27:07,251 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) [2022-07-23 14:27:07,251 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 [2022-07-23 14:27:07,252 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 [2022-07-23 14:27:07,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:27:07,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:27:07,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:27:07,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:27:07,261 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:27:07,261 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:27:07,275 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:27:07,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-23 14:27:07,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:27:07,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:27:07,295 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) [2022-07-23 14:27:07,296 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 [2022-07-23 14:27:07,297 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 [2022-07-23 14:27:07,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:27:07,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:27:07,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:27:07,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:27:07,305 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:27:07,305 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:27:07,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:27:07,342 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 [2022-07-23 14:27:07,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:27:07,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:27:07,343 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) [2022-07-23 14:27:07,344 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 [2022-07-23 14:27:07,345 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 [2022-07-23 14:27:07,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:27:07,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:27:07,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:27:07,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:27:07,358 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:27:07,358 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:27:07,379 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:27:07,404 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-23 14:27:07,404 INFO L444 ModelExtractionUtils]: 8 out of 19 variables were initially zero. Simplification set additionally 9 variables to zero. [2022-07-23 14:27:07,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:27:07,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:27:07,411 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) [2022-07-23 14:27:07,412 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 [2022-07-23 14:27:07,441 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:27:07,456 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-23 14:27:07,456 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:27:07,456 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~a_ref~0#1.base) ULTIMATE.start_f_~a_ref~0#1.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_f_~a_ref~0#1.base) ULTIMATE.start_f_~a_ref~0#1.offset)_1 Supporting invariants [] [2022-07-23 14:27:07,474 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 [2022-07-23 14:27:07,548 INFO L293 tatePredicateManager]: 22 out of 24 supporting invariants were superfluous and have been removed [2022-07-23 14:27:07,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:27:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:27:07,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-23 14:27:07,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:27:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:27:07,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-23 14:27:07,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:27:07,670 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 [2022-07-23 14:27:07,706 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-07-23 14:27:07,707 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 35 treesize of output 34 [2022-07-23 14:27:07,874 INFO L356 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2022-07-23 14:27:07,874 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 98 treesize of output 85 [2022-07-23 14:27:12,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:27:12,675 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 [2022-07-23 14:27:12,676 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-07-23 14:27:12,726 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 28 states and 35 transitions. Complement of second has 8 states. [2022-07-23 14:27:12,727 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 [2022-07-23 14:27:12,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-07-23 14:27:12,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2022-07-23 14:27:12,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-23 14:27:12,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:27:12,733 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:27:12,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:27:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:27:12,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-23 14:27:12,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:27:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:27:12,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-23 14:27:12,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:27:12,806 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-07-23 14:27:12,806 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 35 treesize of output 34 [2022-07-23 14:27:12,916 INFO L356 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2022-07-23 14:27:12,916 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 98 treesize of output 85 [2022-07-23 14:27:15,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:27:15,075 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 [2022-07-23 14:27:15,075 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-07-23 14:27:15,107 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 19 states and 22 transitions. Complement of second has 6 states. [2022-07-23 14:27:15,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-23 14:27:15,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-07-23 14:27:15,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-07-23 14:27:15,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-23 14:27:15,109 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:27:15,109 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:27:15,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:27:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:27:15,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-23 14:27:15,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:27:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:27:15,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-23 14:27:15,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:27:15,185 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-07-23 14:27:15,185 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 35 treesize of output 34 [2022-07-23 14:27:15,314 INFO L356 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2022-07-23 14:27:15,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 98 treesize of output 85 [2022-07-23 14:27:17,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:27:17,938 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 [2022-07-23 14:27:17,939 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-07-23 14:27:17,985 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 29 states and 36 transitions. Complement of second has 7 states. [2022-07-23 14:27:17,986 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 [2022-07-23 14:27:17,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-07-23 14:27:17,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2022-07-23 14:27:17,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-23 14:27:17,987 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:27:17,987 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:27:18,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:27:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:27:18,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-23 14:27:18,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:27:18,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:27:18,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-23 14:27:18,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:27:18,077 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-07-23 14:27:18,078 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 35 treesize of output 34 [2022-07-23 14:27:18,210 INFO L356 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2022-07-23 14:27:18,210 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 98 treesize of output 85 [2022-07-23 14:27:20,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:27:20,158 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 [2022-07-23 14:27:20,159 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-07-23 14:27:20,201 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 20 states and 23 transitions. Complement of second has 5 states. [2022-07-23 14:27:20,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-23 14:27:20,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-07-23 14:27:20,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2022-07-23 14:27:20,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-23 14:27:20,203 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:27:20,203 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:27:20,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:27:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:27:20,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-23 14:27:20,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:27:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:27:20,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-23 14:27:20,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:27:20,281 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-07-23 14:27:20,281 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 35 treesize of output 34 [2022-07-23 14:27:20,383 INFO L356 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2022-07-23 14:27:20,384 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 98 treesize of output 85 [2022-07-23 14:27:25,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:27:25,136 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 [2022-07-23 14:27:25,137 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-07-23 14:27:25,199 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 51 states and 73 transitions. Complement of second has 13 states 6 powerset states7 rank states. The highest rank that occured is 3 [2022-07-23 14:27:25,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2022-07-23 14:27:25,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-07-23 14:27:25,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2022-07-23 14:27:25,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-23 14:27:25,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:27:25,201 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:27:25,202 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) [2022-07-23 14:27:25,207 INFO L158 Benchmark]: Toolchain (without parser) took 20692.53ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 52.4MB in the beginning and 58.6MB in the end (delta: -6.2MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-07-23 14:27:25,207 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:27:25,207 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.15ms. Allocated memory is still 92.3MB. Free memory was 52.2MB in the beginning and 61.4MB in the end (delta: -9.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-23 14:27:25,208 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.35ms. Allocated memory is still 92.3MB. Free memory was 61.4MB in the beginning and 59.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 14:27:25,208 INFO L158 Benchmark]: Boogie Preprocessor took 31.57ms. Allocated memory is still 92.3MB. Free memory was 59.5MB in the beginning and 58.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 14:27:25,208 INFO L158 Benchmark]: RCFGBuilder took 293.92ms. Allocated memory is still 92.3MB. Free memory was 58.2MB in the beginning and 46.9MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-23 14:27:25,209 INFO L158 Benchmark]: BuchiAutomizer took 20006.34ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 46.9MB in the beginning and 58.6MB in the end (delta: -11.7MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2022-07-23 14:27:25,211 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 92.3MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.15ms. Allocated memory is still 92.3MB. Free memory was 52.2MB in the beginning and 61.4MB in the end (delta: -9.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.35ms. Allocated memory is still 92.3MB. Free memory was 61.4MB in the beginning and 59.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.57ms. Allocated memory is still 92.3MB. Free memory was 59.5MB in the beginning and 58.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 293.92ms. Allocated memory is still 92.3MB. Free memory was 58.2MB in the beginning and 46.9MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 20006.34ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 46.9MB in the beginning and 58.6MB in the end (delta: -11.7MB). Peak memory consumption was 15.0MB. 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. [2022-07-23 14:27:25,254 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: AssertionError: no settings was sufficient