./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 70e9192ed98be1c98a98d704655daf2c23fe89411c7a078d7ff71796ac189400 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 03:05:09,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 03:05:09,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 03:05:09,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 03:05:09,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 03:05:09,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 03:05:09,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 03:05:09,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 03:05:10,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 03:05:10,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 03:05:10,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 03:05:10,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 03:05:10,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 03:05:10,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 03:05:10,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 03:05:10,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 03:05:10,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 03:05:10,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 03:05:10,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 03:05:10,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 03:05:10,025 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 03:05:10,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 03:05:10,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 03:05:10,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 03:05:10,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 03:05:10,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 03:05:10,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 03:05:10,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 03:05:10,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 03:05:10,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 03:05:10,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 03:05:10,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 03:05:10,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 03:05:10,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 03:05:10,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 03:05:10,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 03:05:10,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 03:05:10,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 03:05:10,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 03:05:10,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 03:05:10,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 03:05:10,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 03:05:10,043 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-13 03:05:10,070 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 03:05:10,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 03:05:10,071 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 03:05:10,071 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 03:05:10,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 03:05:10,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 03:05:10,073 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 03:05:10,073 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 03:05:10,073 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 03:05:10,074 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 03:05:10,074 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 03:05:10,074 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 03:05:10,074 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 03:05:10,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 03:05:10,075 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 03:05:10,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 03:05:10,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 03:05:10,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 03:05:10,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 03:05:10,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 03:05:10,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 03:05:10,076 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 03:05:10,076 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 03:05:10,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 03:05:10,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 03:05:10,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 03:05:10,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 03:05:10,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 03:05:10,078 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 03:05:10,078 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70e9192ed98be1c98a98d704655daf2c23fe89411c7a078d7ff71796ac189400 [2022-07-13 03:05:10,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 03:05:10,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 03:05:10,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 03:05:10,308 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 03:05:10,309 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 03:05:10,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-2.c [2022-07-13 03:05:10,367 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b9b715ff/9be0544a752f46e7a99d152a8f596103/FLAG7fd7e8c55 [2022-07-13 03:05:10,715 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 03:05:10,715 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-2.c [2022-07-13 03:05:10,720 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b9b715ff/9be0544a752f46e7a99d152a8f596103/FLAG7fd7e8c55 [2022-07-13 03:05:11,150 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b9b715ff/9be0544a752f46e7a99d152a8f596103 [2022-07-13 03:05:11,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 03:05:11,154 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 03:05:11,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 03:05:11,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 03:05:11,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 03:05:11,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:05:11" (1/1) ... [2022-07-13 03:05:11,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62b75f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:05:11, skipping insertion in model container [2022-07-13 03:05:11,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:05:11" (1/1) ... [2022-07-13 03:05:11,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 03:05:11,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 03:05:11,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:05:11,319 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 03:05:11,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:05:11,348 INFO L208 MainTranslator]: Completed translation [2022-07-13 03:05:11,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:05:11 WrapperNode [2022-07-13 03:05:11,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 03:05:11,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 03:05:11,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 03:05:11,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 03:05:11,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:05:11" (1/1) ... [2022-07-13 03:05:11,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:05:11" (1/1) ... [2022-07-13 03:05:11,375 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-07-13 03:05:11,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 03:05:11,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 03:05:11,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 03:05:11,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 03:05:11,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:05:11" (1/1) ... [2022-07-13 03:05:11,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:05:11" (1/1) ... [2022-07-13 03:05:11,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:05:11" (1/1) ... [2022-07-13 03:05:11,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:05:11" (1/1) ... [2022-07-13 03:05:11,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:05:11" (1/1) ... [2022-07-13 03:05:11,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:05:11" (1/1) ... [2022-07-13 03:05:11,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:05:11" (1/1) ... [2022-07-13 03:05:11,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 03:05:11,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 03:05:11,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 03:05:11,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 03:05:11,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:05:11" (1/1) ... [2022-07-13 03:05:11,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:11,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:11,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:11,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-13 03:05:11,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 03:05:11,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 03:05:11,513 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 03:05:11,514 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 03:05:11,582 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 03:05:11,587 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 03:05:11,588 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 03:05:11,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:05:11 BoogieIcfgContainer [2022-07-13 03:05:11,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 03:05:11,592 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 03:05:11,592 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 03:05:11,595 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 03:05:11,595 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:05:11,595 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 03:05:11" (1/3) ... [2022-07-13 03:05:11,597 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14bfe36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:05:11, skipping insertion in model container [2022-07-13 03:05:11,597 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:05:11,597 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:05:11" (2/3) ... [2022-07-13 03:05:11,597 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14bfe36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:05:11, skipping insertion in model container [2022-07-13 03:05:11,598 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:05:11,598 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:05:11" (3/3) ... [2022-07-13 03:05:11,599 INFO L354 chiAutomizerObserver]: Analyzing ICFG Lobnya-Boolean-Reordered-2.c [2022-07-13 03:05:11,646 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 03:05:11,646 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 03:05:11,646 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 03:05:11,646 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 03:05:11,647 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 03:05:11,647 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 03:05:11,647 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 03:05:11,647 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 03:05:11,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:05:11,664 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:05:11,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:05:11,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:05:11,669 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-13 03:05:11,669 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:05:11,670 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 03:05:11,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:05:11,671 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:05:11,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:05:11,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:05:11,672 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-13 03:05:11,672 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:05:11,677 INFO L752 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~b~0#1;havoc main_~x~0#1;havoc main_~b~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L18true assume !!(main_~x~0#1 >= -2147483647); 9#L22-2true [2022-07-13 03:05:11,678 INFO L754 eck$LassoCheckResult]: Loop: 9#L22-2true assume !!(0 != main_~b~0#1);main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1; 5#L22true assume main_~x~0#1 >= 0;main_~b~0#1 := 1; 9#L22-2true [2022-07-13 03:05:11,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:05:11,683 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2022-07-13 03:05:11,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:05:11,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679119839] [2022-07-13 03:05:11,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:05:11,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:05:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:05:11,758 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:05:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:05:11,779 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:05:11,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:05:11,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1476, now seen corresponding path program 1 times [2022-07-13 03:05:11,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:05:11,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024696547] [2022-07-13 03:05:11,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:05:11,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:05:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:05:11,799 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:05:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:05:11,807 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:05:11,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:05:11,810 INFO L85 PathProgramCache]: Analyzing trace with hash 28695975, now seen corresponding path program 1 times [2022-07-13 03:05:11,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:05:11,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72210623] [2022-07-13 03:05:11,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:05:11,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:05:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:05:11,826 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:05:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:05:11,839 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:05:11,938 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:05:11,938 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:05:11,938 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:05:11,939 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:05:11,939 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:05:11,955 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:11,955 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:05:11,955 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:05:11,956 INFO L133 ssoRankerPreferences]: Filename of dumped script: Lobnya-Boolean-Reordered-2.c_Iteration1_Loop [2022-07-13 03:05:11,956 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:05:11,956 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:05:11,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:05:11,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:05:11,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:05:11,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:05:12,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:05:12,083 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:05:12,083 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:05:12,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:12,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:12,088 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:12,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-13 03:05:12,103 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:05:12,104 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:05:12,115 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:05:12,115 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:05:12,130 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 [2022-07-13 03:05:12,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:12,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:12,134 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:12,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-13 03:05:12,141 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:05:12,141 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:05:12,156 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:05:12,156 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:05:12,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:12,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:12,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:12,185 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:12,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-13 03:05:12,189 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:05:12,189 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:05:12,204 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:05:12,204 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:05:12,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:12,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:12,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:12,227 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:12,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-13 03:05:12,230 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:05:12,230 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:05:12,243 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:05:12,243 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~b~0#1=1} Honda state: {ULTIMATE.start_main_~b~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:05:12,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:12,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:12,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:12,269 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:12,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-13 03:05:12,271 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:05:12,271 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:05:12,310 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 [2022-07-13 03:05:12,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:12,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:12,312 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:12,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-13 03:05:12,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:05:12,314 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:05:12,379 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:05:12,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:12,383 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:05:12,383 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:05:12,383 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:05:12,383 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:05:12,383 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:05:12,384 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:12,384 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:05:12,384 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:05:12,384 INFO L133 ssoRankerPreferences]: Filename of dumped script: Lobnya-Boolean-Reordered-2.c_Iteration1_Loop [2022-07-13 03:05:12,384 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:05:12,384 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:05:12,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:05:12,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:05:12,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:05:12,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:05:12,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:05:12,487 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:05:12,491 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:05:12,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:12,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:12,496 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:12,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-13 03:05:12,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:05:12,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:12,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:12,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:12,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:05:12,509 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:05:12,509 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:05:12,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:12,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:12,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:12,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:12,532 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) [2022-07-13 03:05:12,533 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 [2022-07-13 03:05:12,534 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:05:12,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:12,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:12,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:12,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:05:12,544 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:05:12,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:05:12,570 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:12,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-07-13 03:05:12,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:12,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:12,588 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) [2022-07-13 03:05:12,589 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 [2022-07-13 03:05:12,590 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:05:12,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:12,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:05:12,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:12,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:12,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:05:12,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:05:12,599 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:05:12,606 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:12,621 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 [2022-07-13 03:05:12,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:12,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:12,623 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:12,627 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:05:12,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-13 03:05:12,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:12,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:05:12,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:12,634 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-13 03:05:12,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:05:12,636 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-13 03:05:12,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:05:12,658 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:12,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:12,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:12,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:12,675 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:12,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-13 03:05:12,677 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:05:12,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:12,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:05:12,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:12,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:12,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:05:12,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:05:12,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:05:12,694 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:05:12,697 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-13 03:05:12,697 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:05:12,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:12,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:12,699 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:12,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-13 03:05:12,732 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:05:12,732 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:05:12,732 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:05:12,732 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-07-13 03:05:12,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:12,750 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:05:12,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:05:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:05:12,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:05:12,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:05:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:05:12,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:05:12,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:05:12,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:05:12,830 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 [2022-07-13 03:05:12,831 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:05:12,867 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 33 states and 40 transitions. Complement of second has 7 states. [2022-07-13 03:05:12,868 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 [2022-07-13 03:05:12,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:05:12,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2022-07-13 03:05:12,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 3 letters. Loop has 2 letters. [2022-07-13 03:05:12,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:05:12,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-13 03:05:12,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:05:12,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 3 letters. Loop has 4 letters. [2022-07-13 03:05:12,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:05:12,875 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 40 transitions. [2022-07-13 03:05:12,878 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:05:12,880 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 10 states and 13 transitions. [2022-07-13 03:05:12,881 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-07-13 03:05:12,881 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-07-13 03:05:12,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2022-07-13 03:05:12,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:05:12,881 INFO L369 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-07-13 03:05:12,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2022-07-13 03:05:12,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2022-07-13 03:05:12,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:05:12,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2022-07-13 03:05:12,896 INFO L392 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-07-13 03:05:12,896 INFO L374 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-07-13 03:05:12,896 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 03:05:12,897 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2022-07-13 03:05:12,897 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:05:12,897 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:05:12,897 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:05:12,897 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-13 03:05:12,897 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:05:12,898 INFO L752 eck$LassoCheckResult]: Stem: 91#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 92#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~b~0#1;havoc main_~x~0#1;havoc main_~b~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 89#L18 assume !!(main_~x~0#1 >= -2147483647); 90#L22-2 assume !!(0 != main_~b~0#1);main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1; 84#L22 [2022-07-13 03:05:12,898 INFO L754 eck$LassoCheckResult]: Loop: 84#L22 assume !(main_~x~0#1 >= 0);main_~b~0#1 := 0; 85#L22-2 assume !!(0 != main_~b~0#1);main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1; 84#L22 [2022-07-13 03:05:12,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:05:12,898 INFO L85 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2022-07-13 03:05:12,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:05:12,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065568167] [2022-07-13 03:05:12,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:05:12,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:05:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:05:12,903 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:05:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:05:12,906 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:05:12,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:05:12,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1628, now seen corresponding path program 1 times [2022-07-13 03:05:12,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:05:12,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262025164] [2022-07-13 03:05:12,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:05:12,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:05:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:05:12,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:05:12,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:05:12,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262025164] [2022-07-13 03:05:12,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262025164] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:05:12,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:05:12,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 03:05:12,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194768195] [2022-07-13 03:05:12,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:05:12,931 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 03:05:12,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:05:12,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:05:12,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:05:12,937 INFO L87 Difference]: Start difference. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:05:12,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:05:12,946 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2022-07-13 03:05:12,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:05:12,947 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2022-07-13 03:05:12,947 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:05:12,947 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2022-07-13 03:05:12,948 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-13 03:05:12,948 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-13 03:05:12,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-13 03:05:12,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:05:12,948 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:05:12,948 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:05:12,948 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:05:12,948 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-13 03:05:12,948 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-13 03:05:12,948 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:05:12,948 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-13 03:05:12,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 03:05:12 BoogieIcfgContainer [2022-07-13 03:05:12,956 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 03:05:12,956 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 03:05:12,956 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 03:05:12,956 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 03:05:12,957 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:05:11" (3/4) ... [2022-07-13 03:05:12,959 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 03:05:12,959 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 03:05:12,960 INFO L158 Benchmark]: Toolchain (without parser) took 1805.11ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 53.7MB in the beginning and 58.6MB in the end (delta: -4.9MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2022-07-13 03:05:12,960 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 86.0MB. Free memory is still 48.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:05:12,961 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.20ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 53.5MB in the beginning and 90.6MB in the end (delta: -37.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 03:05:12,961 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.02ms. Allocated memory is still 113.2MB. Free memory was 90.6MB in the beginning and 89.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:05:12,963 INFO L158 Benchmark]: Boogie Preprocessor took 15.03ms. Allocated memory is still 113.2MB. Free memory was 89.2MB in the beginning and 88.2MB in the end (delta: 997.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:05:12,964 INFO L158 Benchmark]: RCFGBuilder took 198.59ms. Allocated memory is still 113.2MB. Free memory was 88.2MB in the beginning and 80.6MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-13 03:05:12,965 INFO L158 Benchmark]: BuchiAutomizer took 1363.99ms. Allocated memory is still 113.2MB. Free memory was 80.4MB in the beginning and 58.6MB in the end (delta: 21.8MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2022-07-13 03:05:12,965 INFO L158 Benchmark]: Witness Printer took 2.88ms. Allocated memory is still 113.2MB. Free memory is still 58.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:05:12,968 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 86.0MB. Free memory is still 48.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 193.20ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 53.5MB in the beginning and 90.6MB in the end (delta: -37.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.02ms. Allocated memory is still 113.2MB. Free memory was 90.6MB in the beginning and 89.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.03ms. Allocated memory is still 113.2MB. Free memory was 89.2MB in the beginning and 88.2MB in the end (delta: 997.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 198.59ms. Allocated memory is still 113.2MB. Free memory was 88.2MB in the beginning and 80.6MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1363.99ms. Allocated memory is still 113.2MB. Free memory was 80.4MB in the beginning and 58.6MB in the end (delta: 21.8MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * Witness Printer took 2.88ms. Allocated memory is still 113.2MB. Free memory is still 58.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 20 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax170 hnf100 lsp34 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf94 smp100 dnf150 smp100 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-13 03:05:12,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:13,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE