./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrlen-alloca-2.i --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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/openbsd_cstrlen-alloca-2.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 fa1c4f718d55e1cdd983ccc3852e93608388aa2755030644290199672f6ec657 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 03:33:13,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 03:33:13,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 03:33:13,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 03:33:13,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 03:33:13,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 03:33:13,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 03:33:13,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 03:33:13,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 03:33:13,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 03:33:13,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 03:33:13,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 03:33:13,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 03:33:13,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 03:33:13,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 03:33:13,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 03:33:13,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 03:33:13,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 03:33:13,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 03:33:13,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 03:33:13,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 03:33:13,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 03:33:13,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 03:33:13,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 03:33:13,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 03:33:13,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 03:33:13,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 03:33:13,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 03:33:13,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 03:33:13,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 03:33:13,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 03:33:13,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 03:33:13,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 03:33:13,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 03:33:13,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 03:33:13,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 03:33:13,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 03:33:13,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 03:33:13,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 03:33:13,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 03:33:13,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 03:33:13,683 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-02-21 03:33:13,705 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 03:33:13,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 03:33:13,706 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 03:33:13,706 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 03:33:13,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 03:33:13,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 03:33:13,707 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 03:33:13,707 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 03:33:13,707 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 03:33:13,707 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 03:33:13,708 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 03:33:13,708 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 03:33:13,708 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 03:33:13,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 03:33:13,709 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 03:33:13,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 03:33:13,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 03:33:13,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 03:33:13,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 03:33:13,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 03:33:13,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 03:33:13,710 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 03:33:13,710 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 03:33:13,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 03:33:13,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 03:33:13,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 03:33:13,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 03:33:13,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 03:33:13,712 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 03:33:13,712 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa1c4f718d55e1cdd983ccc3852e93608388aa2755030644290199672f6ec657 [2022-02-21 03:33:13,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 03:33:13,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 03:33:13,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 03:33:13,941 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 03:33:13,941 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 03:33:13,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrlen-alloca-2.i [2022-02-21 03:33:13,989 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d98d4ca3/e5e0453998194c9fb848b8097a4103c8/FLAGb8ca1fe27 [2022-02-21 03:33:14,300 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 03:33:14,303 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrlen-alloca-2.i [2022-02-21 03:33:14,320 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d98d4ca3/e5e0453998194c9fb848b8097a4103c8/FLAGb8ca1fe27 [2022-02-21 03:33:14,698 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d98d4ca3/e5e0453998194c9fb848b8097a4103c8 [2022-02-21 03:33:14,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 03:33:14,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 03:33:14,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 03:33:14,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 03:33:14,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 03:33:14,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:33:14" (1/1) ... [2022-02-21 03:33:14,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bf51370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:33:14, skipping insertion in model container [2022-02-21 03:33:14,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:33:14" (1/1) ... [2022-02-21 03:33:14,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 03:33:14,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 03:33:14,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:33:14,901 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 03:33:14,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:33:14,942 INFO L208 MainTranslator]: Completed translation [2022-02-21 03:33:14,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:33:14 WrapperNode [2022-02-21 03:33:14,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 03:33:14,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 03:33:14,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 03:33:14,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 03:33:14,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:33:14" (1/1) ... [2022-02-21 03:33:14,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:33:14" (1/1) ... [2022-02-21 03:33:14,971 INFO L137 Inliner]: procedures = 111, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2022-02-21 03:33:14,971 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 03:33:14,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 03:33:14,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 03:33:14,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 03:33:14,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:33:14" (1/1) ... [2022-02-21 03:33:14,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:33:14" (1/1) ... [2022-02-21 03:33:14,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:33:14" (1/1) ... [2022-02-21 03:33:14,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:33:14" (1/1) ... [2022-02-21 03:33:14,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:33:14" (1/1) ... [2022-02-21 03:33:14,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:33:14" (1/1) ... [2022-02-21 03:33:14,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:33:14" (1/1) ... [2022-02-21 03:33:14,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 03:33:14,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 03:33:14,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 03:33:14,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 03:33:14,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:33:14" (1/1) ... [2022-02-21 03:33:14,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:15,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:15,016 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) [2022-02-21 03:33:15,020 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 [2022-02-21 03:33:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-21 03:33:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-21 03:33:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-21 03:33:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-21 03:33:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 03:33:15,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 03:33:15,102 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 03:33:15,104 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 03:33:15,217 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 03:33:15,221 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 03:33:15,221 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-21 03:33:15,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:33:15 BoogieIcfgContainer [2022-02-21 03:33:15,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 03:33:15,223 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 03:33:15,223 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 03:33:15,231 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 03:33:15,231 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:33:15,231 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 03:33:14" (1/3) ... [2022-02-21 03:33:15,232 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6abb5e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:33:15, skipping insertion in model container [2022-02-21 03:33:15,232 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:33:15,233 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:33:14" (2/3) ... [2022-02-21 03:33:15,233 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6abb5e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:33:15, skipping insertion in model container [2022-02-21 03:33:15,233 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:33:15,233 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:33:15" (3/3) ... [2022-02-21 03:33:15,234 INFO L388 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrlen-alloca-2.i [2022-02-21 03:33:15,272 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 03:33:15,272 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 03:33:15,272 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 03:33:15,272 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 03:33:15,272 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 03:33:15,273 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 03:33:15,273 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 03:33:15,273 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 03:33:15,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:33:15,313 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:33:15,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:33:15,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:33:15,323 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-02-21 03:33:15,323 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-02-21 03:33:15,323 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 03:33:15,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:33:15,329 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:33:15,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:33:15,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:33:15,330 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-02-21 03:33:15,330 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-02-21 03:33:15,336 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~ret6#1, main_~length1~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;main_~length1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 8#L557true assume !(main_~length1~0#1 < 1); 7#L557-2true call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);assume { :begin_inline_cstrlen } true;cstrlen_#in~str#1.base, cstrlen_#in~str#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrlen_#res#1;havoc cstrlen_#t~pre2#1.base, cstrlen_#t~pre2#1.offset, cstrlen_#t~mem3#1, cstrlen_~str#1.base, cstrlen_~str#1.offset, cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset;cstrlen_~str#1.base, cstrlen_~str#1.offset := cstrlen_#in~str#1.base, cstrlen_#in~str#1.offset;havoc cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset;cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset := cstrlen_~str#1.base, cstrlen_~str#1.offset; 13#L551-4true [2022-02-21 03:33:15,336 INFO L793 eck$LassoCheckResult]: Loop: 13#L551-4true call cstrlen_#t~mem3#1 := read~int(cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset, 1); 9#L551-1true assume !!(0 != cstrlen_#t~mem3#1);havoc cstrlen_#t~mem3#1; 10#L551-3true cstrlen_#t~pre2#1.base, cstrlen_#t~pre2#1.offset := cstrlen_~s~0#1.base, 1 + cstrlen_~s~0#1.offset;cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset := cstrlen_~s~0#1.base, 1 + cstrlen_~s~0#1.offset;havoc cstrlen_#t~pre2#1.base, cstrlen_#t~pre2#1.offset; 13#L551-4true [2022-02-21 03:33:15,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:33:15,346 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2022-02-21 03:33:15,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:33:15,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397728078] [2022-02-21 03:33:15,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:33:15,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:33:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:33:15,455 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:33:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:33:15,498 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:33:15,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:33:15,500 INFO L85 PathProgramCache]: Analyzing trace with hash 42862, now seen corresponding path program 1 times [2022-02-21 03:33:15,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:33:15,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204884736] [2022-02-21 03:33:15,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:33:15,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:33:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:33:15,521 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:33:15,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:33:15,530 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:33:15,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:33:15,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1806814474, now seen corresponding path program 1 times [2022-02-21 03:33:15,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:33:15,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810496211] [2022-02-21 03:33:15,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:33:15,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:33:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:33:15,556 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:33:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:33:15,569 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:33:15,884 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:33:15,885 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:33:15,885 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:33:15,885 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:33:15,885 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-02-21 03:33:15,885 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:15,885 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:33:15,885 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:33:15,886 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrlen-alloca-2.i_Iteration1_Lasso [2022-02-21 03:33:15,886 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:33:15,886 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:33:15,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:33:15,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:33:15,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:33:15,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:33:15,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:33:15,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:33:15,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:33:16,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:33:16,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:33:16,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:33:16,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:33:16,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:33:16,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:33:16,456 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:33:16,459 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-02-21 03:33:16,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:16,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:16,462 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) [2022-02-21 03:33:16,467 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 [2022-02-21 03:33:16,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:33:16,474 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:33:16,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:33:16,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:33:16,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:33:16,476 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:33:16,476 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:33:16,479 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 [2022-02-21 03:33:16,492 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:33:16,508 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 [2022-02-21 03:33:16,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:16,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:16,509 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) [2022-02-21 03:33:16,510 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 [2022-02-21 03:33:16,512 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 [2022-02-21 03:33:16,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:33:16,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:33:16,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:33:16,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:33:16,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:33:16,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:33:16,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:33:16,522 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:33:16,536 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 [2022-02-21 03:33:16,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:16,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:16,538 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) [2022-02-21 03:33:16,542 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 [2022-02-21 03:33:16,542 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 [2022-02-21 03:33:16,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:33:16,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:33:16,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:33:16,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:33:16,550 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-02-21 03:33:16,550 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-02-21 03:33:16,569 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:33:16,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-02-21 03:33:16,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:16,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:16,591 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) [2022-02-21 03:33:16,592 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 [2022-02-21 03:33:16,592 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 [2022-02-21 03:33:16,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:33:16,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:33:16,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:33:16,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:33:16,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:33:16,600 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:33:16,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:33:16,603 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:33:16,619 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 [2022-02-21 03:33:16,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:16,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:16,621 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) [2022-02-21 03:33:16,621 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 [2022-02-21 03:33:16,623 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 [2022-02-21 03:33:16,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:33:16,628 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:33:16,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:33:16,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:33:16,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:33:16,629 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:33:16,629 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:33:16,630 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:33:16,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-02-21 03:33:16,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:16,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:16,647 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) [2022-02-21 03:33:16,649 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 [2022-02-21 03:33:16,649 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 [2022-02-21 03:33:16,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:33:16,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:33:16,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:33:16,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:33:16,658 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-02-21 03:33:16,658 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-02-21 03:33:16,666 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:33:16,681 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 [2022-02-21 03:33:16,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:16,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:16,683 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) [2022-02-21 03:33:16,684 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 [2022-02-21 03:33:16,685 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 [2022-02-21 03:33:16,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:33:16,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:33:16,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:33:16,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:33:16,698 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-02-21 03:33:16,698 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-02-21 03:33:16,711 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:33:16,727 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 [2022-02-21 03:33:16,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:16,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:16,735 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) [2022-02-21 03:33:16,736 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 [2022-02-21 03:33:16,737 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 [2022-02-21 03:33:16,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:33:16,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:33:16,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:33:16,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:33:16,749 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-02-21 03:33:16,749 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-02-21 03:33:16,763 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:33:16,778 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 [2022-02-21 03:33:16,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:16,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:16,780 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) [2022-02-21 03:33:16,780 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 [2022-02-21 03:33:16,782 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 [2022-02-21 03:33:16,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:33:16,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:33:16,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:33:16,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:33:16,790 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-02-21 03:33:16,790 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-02-21 03:33:16,799 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:33:16,815 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 [2022-02-21 03:33:16,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:16,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:16,816 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) [2022-02-21 03:33:16,817 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 [2022-02-21 03:33:16,820 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 [2022-02-21 03:33:16,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:33:16,826 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:33:16,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:33:16,826 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-02-21 03:33:16,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:33:16,827 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-02-21 03:33:16,827 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:33:16,829 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:33:16,844 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 [2022-02-21 03:33:16,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:16,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:16,845 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) [2022-02-21 03:33:16,846 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 [2022-02-21 03:33:16,847 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 [2022-02-21 03:33:16,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:33:16,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:33:16,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:33:16,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:33:16,860 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-02-21 03:33:16,860 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-02-21 03:33:16,887 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-02-21 03:33:16,933 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2022-02-21 03:33:16,933 INFO L444 ModelExtractionUtils]: 17 out of 28 variables were initially zero. Simplification set additionally 8 variables to zero. [2022-02-21 03:33:16,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:16,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:16,960 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) [2022-02-21 03:33:16,996 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-02-21 03:33:17,001 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 [2022-02-21 03:33:17,016 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-02-21 03:33:17,017 INFO L513 LassoAnalysis]: Proved termination. [2022-02-21 03:33:17,017 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc5#1.base)_1, ULTIMATE.start_cstrlen_~s~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc5#1.base)_1 - 1*ULTIMATE.start_cstrlen_~s~0#1.offset Supporting invariants [] [2022-02-21 03:33:17,035 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 [2022-02-21 03:33:17,063 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2022-02-21 03:33:17,069 INFO L390 LassoCheck]: Loop: "call cstrlen_#t~mem3#1 := read~int(cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset, 1);" "assume !!(0 != cstrlen_#t~mem3#1);havoc cstrlen_#t~mem3#1;" "cstrlen_#t~pre2#1.base, cstrlen_#t~pre2#1.offset := cstrlen_~s~0#1.base, 1 + cstrlen_~s~0#1.offset;cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset := cstrlen_~s~0#1.base, 1 + cstrlen_~s~0#1.offset;havoc cstrlen_#t~pre2#1.base, cstrlen_#t~pre2#1.offset;" [2022-02-21 03:33:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:33:17,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:33:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:33:17,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-21 03:33:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:33:17,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:33:17,136 INFO L290 TraceCheckUtils]: 0: Hoare triple {22#unseeded} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; {22#unseeded} is VALID [2022-02-21 03:33:17,136 INFO L290 TraceCheckUtils]: 1: Hoare triple {22#unseeded} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~ret6#1, main_~length1~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;main_~length1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; {22#unseeded} is VALID [2022-02-21 03:33:17,136 INFO L290 TraceCheckUtils]: 2: Hoare triple {22#unseeded} assume !(main_~length1~0#1 < 1); {22#unseeded} is VALID [2022-02-21 03:33:17,137 INFO L290 TraceCheckUtils]: 3: Hoare triple {22#unseeded} call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);assume { :begin_inline_cstrlen } true;cstrlen_#in~str#1.base, cstrlen_#in~str#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrlen_#res#1;havoc cstrlen_#t~pre2#1.base, cstrlen_#t~pre2#1.offset, cstrlen_#t~mem3#1, cstrlen_~str#1.base, cstrlen_~str#1.offset, cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset;cstrlen_~str#1.base, cstrlen_~str#1.offset := cstrlen_#in~str#1.base, cstrlen_#in~str#1.offset;havoc cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset;cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset := cstrlen_~str#1.base, cstrlen_~str#1.offset; {56#(and (= |ULTIMATE.start_cstrlen_~s~0#1.base| |ULTIMATE.start_main_#t~malloc5#1.base|) unseeded)} is VALID [2022-02-21 03:33:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:33:17,144 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-21 03:33:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:33:17,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:33:17,194 INFO L290 TraceCheckUtils]: 0: Hoare triple {57#(and (= |ULTIMATE.start_cstrlen_~s~0#1.base| |ULTIMATE.start_main_#t~malloc5#1.base|) (>= oldRank0 (+ (* (- 1) |ULTIMATE.start_cstrlen_~s~0#1.offset|) (select |#length| |ULTIMATE.start_main_#t~malloc5#1.base|))))} call cstrlen_#t~mem3#1 := read~int(cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset, 1); {74#(and (= |ULTIMATE.start_cstrlen_~s~0#1.base| |ULTIMATE.start_main_#t~malloc5#1.base|) (<= (+ |ULTIMATE.start_cstrlen_~s~0#1.offset| 1) (select |#length| |ULTIMATE.start_cstrlen_~s~0#1.base|)) (>= oldRank0 (+ (* (- 1) |ULTIMATE.start_cstrlen_~s~0#1.offset|) (select |#length| |ULTIMATE.start_main_#t~malloc5#1.base|))))} is VALID [2022-02-21 03:33:17,195 INFO L290 TraceCheckUtils]: 1: Hoare triple {74#(and (= |ULTIMATE.start_cstrlen_~s~0#1.base| |ULTIMATE.start_main_#t~malloc5#1.base|) (<= (+ |ULTIMATE.start_cstrlen_~s~0#1.offset| 1) (select |#length| |ULTIMATE.start_cstrlen_~s~0#1.base|)) (>= oldRank0 (+ (* (- 1) |ULTIMATE.start_cstrlen_~s~0#1.offset|) (select |#length| |ULTIMATE.start_main_#t~malloc5#1.base|))))} assume !!(0 != cstrlen_#t~mem3#1);havoc cstrlen_#t~mem3#1; {74#(and (= |ULTIMATE.start_cstrlen_~s~0#1.base| |ULTIMATE.start_main_#t~malloc5#1.base|) (<= (+ |ULTIMATE.start_cstrlen_~s~0#1.offset| 1) (select |#length| |ULTIMATE.start_cstrlen_~s~0#1.base|)) (>= oldRank0 (+ (* (- 1) |ULTIMATE.start_cstrlen_~s~0#1.offset|) (select |#length| |ULTIMATE.start_main_#t~malloc5#1.base|))))} is VALID [2022-02-21 03:33:17,196 INFO L290 TraceCheckUtils]: 2: Hoare triple {74#(and (= |ULTIMATE.start_cstrlen_~s~0#1.base| |ULTIMATE.start_main_#t~malloc5#1.base|) (<= (+ |ULTIMATE.start_cstrlen_~s~0#1.offset| 1) (select |#length| |ULTIMATE.start_cstrlen_~s~0#1.base|)) (>= oldRank0 (+ (* (- 1) |ULTIMATE.start_cstrlen_~s~0#1.offset|) (select |#length| |ULTIMATE.start_main_#t~malloc5#1.base|))))} cstrlen_#t~pre2#1.base, cstrlen_#t~pre2#1.offset := cstrlen_~s~0#1.base, 1 + cstrlen_~s~0#1.offset;cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset := cstrlen_~s~0#1.base, 1 + cstrlen_~s~0#1.offset;havoc cstrlen_#t~pre2#1.base, cstrlen_#t~pre2#1.offset; {59#(and (= |ULTIMATE.start_cstrlen_~s~0#1.base| |ULTIMATE.start_main_#t~malloc5#1.base|) (or (and (>= oldRank0 0) (> oldRank0 (+ (* (- 1) |ULTIMATE.start_cstrlen_~s~0#1.offset|) (select |#length| |ULTIMATE.start_main_#t~malloc5#1.base|)))) unseeded))} is VALID [2022-02-21 03:33:17,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 03:33:17,220 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:33:17,227 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:33:17,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:33:17,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,232 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 [2022-02-21 03:33:17,233 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:33:17,302 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 25 transitions. Complement of second has 6 states. [2022-02-21 03:33:17,303 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 [2022-02-21 03:33:17,303 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:33:17,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:33:17,307 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:33:17,307 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:33:17,307 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:33:17,307 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:33:17,312 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2022-02-21 03:33:17,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:33:17,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:33:17,313 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 25 transitions. [2022-02-21 03:33:17,314 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:33:17,314 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:33:17,315 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:33:17,319 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:33:17,320 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2022-02-21 03:33:17,320 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:33:17,321 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2022-02-21 03:33:17,321 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2022-02-21 03:33:17,321 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 22 states and 25 transitions. cyclomatic complexity: 4 [2022-02-21 03:33:17,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 25 transitions. cyclomatic complexity: 4 [2022-02-21 03:33:17,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:33:17,321 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2022-02-21 03:33:17,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:33:17,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,322 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:33:17,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,322 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 25 transitions. cyclomatic complexity: 4 Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:33:17,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,322 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 1 letters. Loop has 2 letters. [2022-02-21 03:33:17,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,323 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 1 letters. Loop has 2 letters. [2022-02-21 03:33:17,323 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,323 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 25 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 2 letters. [2022-02-21 03:33:17,323 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,323 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 22 letters. Loop has 22 letters. [2022-02-21 03:33:17,323 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 22 letters. Loop has 22 letters. [2022-02-21 03:33:17,324 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 25 transitions. cyclomatic complexity: 4 Stem has 22 letters. Loop has 22 letters. [2022-02-21 03:33:17,324 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 12 letters. Loop has 12 letters. [2022-02-21 03:33:17,324 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 12 letters. Loop has 12 letters. [2022-02-21 03:33:17,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 25 transitions. cyclomatic complexity: 4 Stem has 12 letters. Loop has 12 letters. [2022-02-21 03:33:17,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 4 letters. Loop has 4 letters. [2022-02-21 03:33:17,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 4 letters. Loop has 4 letters. [2022-02-21 03:33:17,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 25 transitions. cyclomatic complexity: 4 Stem has 4 letters. Loop has 4 letters. [2022-02-21 03:33:17,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 5 letters. Loop has 3 letters. [2022-02-21 03:33:17,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 5 letters. Loop has 3 letters. [2022-02-21 03:33:17,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 25 transitions. cyclomatic complexity: 4 Stem has 5 letters. Loop has 3 letters. [2022-02-21 03:33:17,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:33:17,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:33:17,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 25 transitions. cyclomatic complexity: 4 Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:33:17,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 6 letters. Loop has 3 letters. [2022-02-21 03:33:17,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 6 letters. Loop has 3 letters. [2022-02-21 03:33:17,329 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 25 transitions. cyclomatic complexity: 4 Stem has 6 letters. Loop has 3 letters. [2022-02-21 03:33:17,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:33:17,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:33:17,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 25 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:33:17,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 1 letters. Loop has 2 letters. [2022-02-21 03:33:17,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 1 letters. Loop has 2 letters. [2022-02-21 03:33:17,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 25 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 2 letters. [2022-02-21 03:33:17,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,331 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:33:17,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:33:17,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-02-21 03:33:17,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:33:17,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2022-02-21 03:33:17,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 6 letters. [2022-02-21 03:33:17,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:17,343 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 25 transitions. cyclomatic complexity: 4 [2022-02-21 03:33:17,348 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:33:17,350 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2022-02-21 03:33:17,350 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-02-21 03:33:17,350 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-02-21 03:33:17,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-02-21 03:33:17,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 03:33:17,352 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:33:17,353 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:33:17,353 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:33:17,353 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 03:33:17,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-02-21 03:33:17,353 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:33:17,353 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:33:17,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 03:33:17 BoogieIcfgContainer [2022-02-21 03:33:17,358 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 03:33:17,358 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 03:33:17,358 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 03:33:17,358 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 03:33:17,358 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:33:15" (3/4) ... [2022-02-21 03:33:17,360 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-21 03:33:17,360 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 03:33:17,361 INFO L158 Benchmark]: Toolchain (without parser) took 2660.71ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 65.6MB in the beginning and 59.4MB in the end (delta: 6.2MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2022-02-21 03:33:17,364 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:33:17,364 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.62ms. Allocated memory is still 96.5MB. Free memory was 65.4MB in the beginning and 65.5MB in the end (delta: -62.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 03:33:17,365 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.05ms. Allocated memory is still 96.5MB. Free memory was 65.5MB in the beginning and 63.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:33:17,366 INFO L158 Benchmark]: Boogie Preprocessor took 16.74ms. Allocated memory is still 96.5MB. Free memory was 63.6MB in the beginning and 62.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:33:17,366 INFO L158 Benchmark]: RCFGBuilder took 233.42ms. Allocated memory is still 96.5MB. Free memory was 62.2MB in the beginning and 52.1MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 03:33:17,367 INFO L158 Benchmark]: BuchiAutomizer took 2134.77ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 51.8MB in the beginning and 59.4MB in the end (delta: -7.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-02-21 03:33:17,368 INFO L158 Benchmark]: Witness Printer took 2.13ms. Allocated memory is still 123.7MB. Free memory is still 59.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:33:17,370 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 239.62ms. Allocated memory is still 96.5MB. Free memory was 65.4MB in the beginning and 65.5MB in the end (delta: -62.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.05ms. Allocated memory is still 96.5MB. Free memory was 65.5MB in the beginning and 63.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.74ms. Allocated memory is still 96.5MB. Free memory was 63.6MB in the beginning and 62.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 233.42ms. Allocated memory is still 96.5MB. Free memory was 62.2MB in the beginning and 52.1MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2134.77ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 51.8MB in the beginning and 59.4MB in the end (delta: -7.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 2.13ms. Allocated memory is still 123.7MB. Free memory is still 59.4MB. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 7 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital113 mio100 ax115 hnf100 lsp81 ukn95 mio100 lsp46 div100 bol100 ite100 ukn100 eq189 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 31ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-02-21 03:33:17,390 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 [2022-02-21 03:33:17,605 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