./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemchr-alloca-1.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_cmemchr-alloca-1.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 7f0d11c5f3d4193dc8b87cb3dbae552e2a558805da02a0660bf5cf3361799dbf --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 03:32:56,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 03:32:56,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 03:32:56,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 03:32:56,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 03:32:56,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 03:32:56,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 03:32:56,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 03:32:56,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 03:32:56,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 03:32:56,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 03:32:56,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 03:32:56,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 03:32:56,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 03:32:56,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 03:32:56,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 03:32:56,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 03:32:56,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 03:32:56,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 03:32:56,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 03:32:56,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 03:32:56,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 03:32:56,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 03:32:56,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 03:32:56,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 03:32:56,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 03:32:56,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 03:32:56,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 03:32:56,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 03:32:56,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 03:32:56,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 03:32:56,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 03:32:56,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 03:32:56,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 03:32:56,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 03:32:56,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 03:32:56,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 03:32:56,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 03:32:56,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 03:32:56,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 03:32:56,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 03:32:56,752 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-02-21 03:32:56,778 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 03:32:56,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 03:32:56,778 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 03:32:56,779 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 03:32:56,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 03:32:56,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 03:32:56,779 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 03:32:56,780 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 03:32:56,780 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 03:32:56,780 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 03:32:56,780 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 03:32:56,780 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 03:32:56,780 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 03:32:56,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 03:32:56,780 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 03:32:56,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 03:32:56,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 03:32:56,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 03:32:56,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 03:32:56,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 03:32:56,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 03:32:56,781 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 03:32:56,781 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 03:32:56,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 03:32:56,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 03:32:56,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 03:32:56,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 03:32:56,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 03:32:56,782 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 03:32:56,782 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f0d11c5f3d4193dc8b87cb3dbae552e2a558805da02a0660bf5cf3361799dbf [2022-02-21 03:32:56,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 03:32:56,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 03:32:56,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 03:32:56,985 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 03:32:56,987 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 03:32:56,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemchr-alloca-1.i [2022-02-21 03:32:57,085 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bb50deb7/0ff283855db148269c4e3ffd286c87f0/FLAG53f1dbfb4 [2022-02-21 03:32:57,444 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 03:32:57,445 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/openbsd_cmemchr-alloca-1.i [2022-02-21 03:32:57,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bb50deb7/0ff283855db148269c4e3ffd286c87f0/FLAG53f1dbfb4 [2022-02-21 03:32:57,831 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bb50deb7/0ff283855db148269c4e3ffd286c87f0 [2022-02-21 03:32:57,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 03:32:57,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 03:32:57,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 03:32:57,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 03:32:57,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 03:32:57,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:32:57" (1/1) ... [2022-02-21 03:32:57,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@346e7adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:57, skipping insertion in model container [2022-02-21 03:32:57,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:32:57" (1/1) ... [2022-02-21 03:32:57,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 03:32:57,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 03:32:58,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:32:58,082 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 03:32:58,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:32:58,136 INFO L208 MainTranslator]: Completed translation [2022-02-21 03:32:58,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:58 WrapperNode [2022-02-21 03:32:58,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 03:32:58,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 03:32:58,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 03:32:58,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 03:32:58,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:58" (1/1) ... [2022-02-21 03:32:58,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:58" (1/1) ... [2022-02-21 03:32:58,175 INFO L137 Inliner]: procedures = 111, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2022-02-21 03:32:58,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 03:32:58,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 03:32:58,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 03:32:58,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 03:32:58,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:58" (1/1) ... [2022-02-21 03:32:58,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:58" (1/1) ... [2022-02-21 03:32:58,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:58" (1/1) ... [2022-02-21 03:32:58,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:58" (1/1) ... [2022-02-21 03:32:58,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:58" (1/1) ... [2022-02-21 03:32:58,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:58" (1/1) ... [2022-02-21 03:32:58,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:58" (1/1) ... [2022-02-21 03:32:58,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 03:32:58,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 03:32:58,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 03:32:58,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 03:32:58,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:58" (1/1) ... [2022-02-21 03:32:58,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:32:58,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:32:58,232 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 03:32:58,234 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 03:32:58,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-21 03:32:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-21 03:32:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-21 03:32:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 03:32:58,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 03:32:58,368 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 03:32:58,369 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 03:32:58,467 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 03:32:58,471 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 03:32:58,471 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-21 03:32:58,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:32:58 BoogieIcfgContainer [2022-02-21 03:32:58,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 03:32:58,473 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 03:32:58,473 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 03:32:58,481 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 03:32:58,481 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:32:58,482 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 03:32:57" (1/3) ... [2022-02-21 03:32:58,483 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17d41b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:32:58, skipping insertion in model container [2022-02-21 03:32:58,483 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:32:58,483 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:58" (2/3) ... [2022-02-21 03:32:58,483 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17d41b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:32:58, skipping insertion in model container [2022-02-21 03:32:58,483 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:32:58,483 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:32:58" (3/3) ... [2022-02-21 03:32:58,484 INFO L388 chiAutomizerObserver]: Analyzing ICFG openbsd_cmemchr-alloca-1.i [2022-02-21 03:32:58,512 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 03:32:58,512 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 03:32:58,512 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 03:32:58,512 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 03:32:58,512 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 03:32:58,512 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 03:32:58,513 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 03:32:58,513 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 03:32:58,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 03:32:58,535 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-02-21 03:32:58,535 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:32:58,535 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:32:58,538 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-02-21 03:32:58,539 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-02-21 03:32:58,539 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 03:32:58,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 03:32:58,541 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-02-21 03:32:58,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:32:58,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:32:58,543 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-02-21 03:32:58,544 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-02-21 03:32:58,548 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_~length~0#1, main_~n~0#1, main_~c~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset;main_~length~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~n~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~c~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 12#L563true assume !(main_~length~0#1 < 1); 8#L563-2true assume !(main_~n~0#1 < 1); 13#L566-1true call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~n~0#1);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;assume { :begin_inline_cmemchr } true;cmemchr_#in~s#1.base, cmemchr_#in~s#1.offset, cmemchr_#in~c#1, cmemchr_#in~n#1 := main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~c~0#1, main_~n~0#1;havoc cmemchr_#res#1.base, cmemchr_#res#1.offset;havoc cmemchr_#t~post3#1.base, cmemchr_#t~post3#1.offset, cmemchr_#t~mem4#1, cmemchr_#t~pre2#1, cmemchr_~p~0#1.base, cmemchr_~p~0#1.offset, cmemchr_~s#1.base, cmemchr_~s#1.offset, cmemchr_~c#1, cmemchr_~n#1;cmemchr_~s#1.base, cmemchr_~s#1.offset := cmemchr_#in~s#1.base, cmemchr_#in~s#1.offset;cmemchr_~c#1 := cmemchr_#in~c#1;cmemchr_~n#1 := cmemchr_#in~n#1; 16#L550true assume 0 != cmemchr_~n#1 % 18446744073709551616;cmemchr_~p~0#1.base, cmemchr_~p~0#1.offset := cmemchr_~s#1.base, cmemchr_~s#1.offset; 5#L552-4true [2022-02-21 03:32:58,549 INFO L793 eck$LassoCheckResult]: Loop: 5#L552-4true cmemchr_#t~post3#1.base, cmemchr_#t~post3#1.offset := cmemchr_~p~0#1.base, cmemchr_~p~0#1.offset;cmemchr_~p~0#1.base, cmemchr_~p~0#1.offset := cmemchr_#t~post3#1.base, 1 + cmemchr_#t~post3#1.offset;call cmemchr_#t~mem4#1 := read~int(cmemchr_#t~post3#1.base, cmemchr_#t~post3#1.offset, 1); 11#L553true assume !(cmemchr_#t~mem4#1 % 256 == cmemchr_~c#1 % 256);havoc cmemchr_#t~post3#1.base, cmemchr_#t~post3#1.offset;havoc cmemchr_#t~mem4#1; 9#L552-1true cmemchr_#t~pre2#1 := cmemchr_~n#1 - 1;cmemchr_~n#1 := cmemchr_~n#1 - 1; 10#L552-2true assume !!(0 != cmemchr_#t~pre2#1 % 18446744073709551616);havoc cmemchr_#t~pre2#1; 5#L552-4true [2022-02-21 03:32:58,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:32:58,555 INFO L85 PathProgramCache]: Analyzing trace with hash 889572236, now seen corresponding path program 1 times [2022-02-21 03:32:58,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:32:58,562 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121806450] [2022-02-21 03:32:58,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:32:58,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:32:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:32:58,657 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:32:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:32:58,700 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:32:58,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:32:58,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1605803, now seen corresponding path program 1 times [2022-02-21 03:32:58,702 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:32:58,703 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173069503] [2022-02-21 03:32:58,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:32:58,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:32:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:32:58,723 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:32:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:32:58,738 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:32:58,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:32:58,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1592233654, now seen corresponding path program 1 times [2022-02-21 03:32:58,739 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:32:58,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972413113] [2022-02-21 03:32:58,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:32:58,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:32:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:32:58,765 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:32:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:32:58,784 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:32:59,228 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:32:59,229 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:32:59,229 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:32:59,229 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:32:59,229 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-02-21 03:32:59,229 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:32:59,230 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:32:59,230 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:32:59,230 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemchr-alloca-1.i_Iteration1_Lasso [2022-02-21 03:32:59,230 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:32:59,230 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:32:59,242 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 03:32:59,247 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 03:32:59,251 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 03:32:59,253 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 03:32:59,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:32:59,257 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 03:32:59,260 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 03:32:59,509 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 03:32:59,512 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 03:32:59,514 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 03:32:59,517 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 03:32:59,519 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 03:32:59,523 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 03:32:59,525 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 03:32:59,528 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 03:32:59,530 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 03:32:59,532 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 03:32:59,534 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 03:32:59,536 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 03:33:00,121 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:33:00,124 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-02-21 03:33:00,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:00,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:00,126 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 03:33:00,128 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 03:33:00,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:33:00,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:33:00,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:33:00,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:33:00,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:33:00,136 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:33:00,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:33:00,137 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 03:33:00,152 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:33:00,169 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 03:33:00,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:00,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:00,171 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 03:33:00,187 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 03:33:00,188 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 03:33:00,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:33:00,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:33:00,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:33:00,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:33:00,196 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-02-21 03:33:00,196 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-02-21 03:33:00,212 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:33:00,246 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 03:33:00,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:00,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:00,247 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 03:33:00,267 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 03:33:00,268 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 03:33:00,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:33:00,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:33:00,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:33:00,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:33:00,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:33:00,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:33:00,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:33:00,291 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:33:00,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-02-21 03:33:00,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:00,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:00,311 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 03:33:00,312 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 03:33:00,315 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 03:33:00,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:33:00,322 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:33:00,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:33:00,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:33:00,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:33:00,323 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:33:00,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:33:00,341 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:33:00,356 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 03:33:00,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:00,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:00,366 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 03:33:00,367 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 03:33:00,368 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 03:33:00,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:33:00,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:33:00,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:33:00,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:33:00,375 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-02-21 03:33:00,375 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-02-21 03:33:00,391 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:33:00,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-02-21 03:33:00,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:00,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:00,436 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 03:33:00,437 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 03:33:00,438 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 03:33:00,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:33:00,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:33:00,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:33:00,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:33:00,446 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-02-21 03:33:00,446 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-02-21 03:33:00,456 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:33:00,487 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 03:33:00,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:00,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:00,502 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 03:33:00,519 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 03:33:00,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:33:00,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:33:00,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:33:00,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:33:00,536 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-02-21 03:33:00,536 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-02-21 03:33:00,542 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 03:33:00,550 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-02-21 03:33:00,570 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2022-02-21 03:33:00,570 INFO L444 ModelExtractionUtils]: 23 out of 34 variables were initially zero. Simplification set additionally 8 variables to zero. [2022-02-21 03:33:00,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:33:00,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:33:00,580 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 03:33:00,581 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 03:33:00,639 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-02-21 03:33:00,657 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-02-21 03:33:00,657 INFO L513 LassoAnalysis]: Proved termination. [2022-02-21 03:33:00,658 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc8#1.base)_1, ULTIMATE.start_cmemchr_~p~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8#1.base)_1 - 1*ULTIMATE.start_cmemchr_~p~0#1.offset Supporting invariants [] [2022-02-21 03:33:00,703 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 03:33:00,720 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2022-02-21 03:33:00,728 INFO L390 LassoCheck]: Loop: "cmemchr_#t~post3#1.base, cmemchr_#t~post3#1.offset := cmemchr_~p~0#1.base, cmemchr_~p~0#1.offset;cmemchr_~p~0#1.base, cmemchr_~p~0#1.offset := cmemchr_#t~post3#1.base, 1 + cmemchr_#t~post3#1.offset;call cmemchr_#t~mem4#1 := read~int(cmemchr_#t~post3#1.base, cmemchr_#t~post3#1.offset, 1);" "assume !(cmemchr_#t~mem4#1 % 256 == cmemchr_~c#1 % 256);havoc cmemchr_#t~post3#1.base, cmemchr_#t~post3#1.offset;havoc cmemchr_#t~mem4#1;" "cmemchr_#t~pre2#1 := cmemchr_~n#1 - 1;cmemchr_~n#1 := cmemchr_~n#1 - 1;" "assume !!(0 != cmemchr_#t~pre2#1 % 18446744073709551616);havoc cmemchr_#t~pre2#1;" [2022-02-21 03:33:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:33:00,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:33:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:33:00,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-21 03:33:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:33:00,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:33:00,803 INFO L290 TraceCheckUtils]: 0: Hoare triple {25#unseeded} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; {25#unseeded} is VALID [2022-02-21 03:33:00,804 INFO L290 TraceCheckUtils]: 1: Hoare triple {25#unseeded} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_~length~0#1, main_~n~0#1, main_~c~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset;main_~length~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~n~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~c~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; {25#unseeded} is VALID [2022-02-21 03:33:00,804 INFO L290 TraceCheckUtils]: 2: Hoare triple {25#unseeded} assume !(main_~length~0#1 < 1); {25#unseeded} is VALID [2022-02-21 03:33:00,804 INFO L290 TraceCheckUtils]: 3: Hoare triple {25#unseeded} assume !(main_~n~0#1 < 1); {25#unseeded} is VALID [2022-02-21 03:33:00,805 INFO L290 TraceCheckUtils]: 4: Hoare triple {25#unseeded} call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~n~0#1);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;assume { :begin_inline_cmemchr } true;cmemchr_#in~s#1.base, cmemchr_#in~s#1.offset, cmemchr_#in~c#1, cmemchr_#in~n#1 := main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~c~0#1, main_~n~0#1;havoc cmemchr_#res#1.base, cmemchr_#res#1.offset;havoc cmemchr_#t~post3#1.base, cmemchr_#t~post3#1.offset, cmemchr_#t~mem4#1, cmemchr_#t~pre2#1, cmemchr_~p~0#1.base, cmemchr_~p~0#1.offset, cmemchr_~s#1.base, cmemchr_~s#1.offset, cmemchr_~c#1, cmemchr_~n#1;cmemchr_~s#1.base, cmemchr_~s#1.offset := cmemchr_#in~s#1.base, cmemchr_#in~s#1.offset;cmemchr_~c#1 := cmemchr_#in~c#1;cmemchr_~n#1 := cmemchr_#in~n#1; {75#(and (= |ULTIMATE.start_main_#t~malloc8#1.base| |ULTIMATE.start_cmemchr_~s#1.base|) unseeded)} is VALID [2022-02-21 03:33:00,806 INFO L290 TraceCheckUtils]: 5: Hoare triple {75#(and (= |ULTIMATE.start_main_#t~malloc8#1.base| |ULTIMATE.start_cmemchr_~s#1.base|) unseeded)} assume 0 != cmemchr_~n#1 % 18446744073709551616;cmemchr_~p~0#1.base, cmemchr_~p~0#1.offset := cmemchr_~s#1.base, cmemchr_~s#1.offset; {54#(and unseeded (= |ULTIMATE.start_main_#t~malloc8#1.base| |ULTIMATE.start_cmemchr_~p~0#1.base|))} is VALID [2022-02-21 03:33:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:33:00,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 11 conjunts are in the unsatisfiable core [2022-02-21 03:33:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:33:00,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:33:00,888 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-02-21 03:33:00,919 INFO L290 TraceCheckUtils]: 0: Hoare triple {55#(and (>= oldRank0 (+ (select |#length| |ULTIMATE.start_main_#t~malloc8#1.base|) (* (- 1) |ULTIMATE.start_cmemchr_~p~0#1.offset|))) (= |ULTIMATE.start_main_#t~malloc8#1.base| |ULTIMATE.start_cmemchr_~p~0#1.base|))} cmemchr_#t~post3#1.base, cmemchr_#t~post3#1.offset := cmemchr_~p~0#1.base, cmemchr_~p~0#1.offset;cmemchr_~p~0#1.base, cmemchr_~p~0#1.offset := cmemchr_#t~post3#1.base, 1 + cmemchr_#t~post3#1.offset;call cmemchr_#t~mem4#1 := read~int(cmemchr_#t~post3#1.base, cmemchr_#t~post3#1.offset, 1); {79#(and (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc8#1.base|) 1) (+ |ULTIMATE.start_cmemchr_~p~0#1.offset| oldRank0)) (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc8#1.base|) 1) (+ oldRank0 (select |#length| |ULTIMATE.start_cmemchr_~p~0#1.base|))) (= |ULTIMATE.start_main_#t~malloc8#1.base| |ULTIMATE.start_cmemchr_~p~0#1.base|))} is VALID [2022-02-21 03:33:00,919 INFO L290 TraceCheckUtils]: 1: Hoare triple {79#(and (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc8#1.base|) 1) (+ |ULTIMATE.start_cmemchr_~p~0#1.offset| oldRank0)) (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc8#1.base|) 1) (+ oldRank0 (select |#length| |ULTIMATE.start_cmemchr_~p~0#1.base|))) (= |ULTIMATE.start_main_#t~malloc8#1.base| |ULTIMATE.start_cmemchr_~p~0#1.base|))} assume !(cmemchr_#t~mem4#1 % 256 == cmemchr_~c#1 % 256);havoc cmemchr_#t~post3#1.base, cmemchr_#t~post3#1.offset;havoc cmemchr_#t~mem4#1; {79#(and (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc8#1.base|) 1) (+ |ULTIMATE.start_cmemchr_~p~0#1.offset| oldRank0)) (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc8#1.base|) 1) (+ oldRank0 (select |#length| |ULTIMATE.start_cmemchr_~p~0#1.base|))) (= |ULTIMATE.start_main_#t~malloc8#1.base| |ULTIMATE.start_cmemchr_~p~0#1.base|))} is VALID [2022-02-21 03:33:00,920 INFO L290 TraceCheckUtils]: 2: Hoare triple {79#(and (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc8#1.base|) 1) (+ |ULTIMATE.start_cmemchr_~p~0#1.offset| oldRank0)) (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc8#1.base|) 1) (+ oldRank0 (select |#length| |ULTIMATE.start_cmemchr_~p~0#1.base|))) (= |ULTIMATE.start_main_#t~malloc8#1.base| |ULTIMATE.start_cmemchr_~p~0#1.base|))} cmemchr_#t~pre2#1 := cmemchr_~n#1 - 1;cmemchr_~n#1 := cmemchr_~n#1 - 1; {79#(and (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc8#1.base|) 1) (+ |ULTIMATE.start_cmemchr_~p~0#1.offset| oldRank0)) (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc8#1.base|) 1) (+ oldRank0 (select |#length| |ULTIMATE.start_cmemchr_~p~0#1.base|))) (= |ULTIMATE.start_main_#t~malloc8#1.base| |ULTIMATE.start_cmemchr_~p~0#1.base|))} is VALID [2022-02-21 03:33:00,921 INFO L290 TraceCheckUtils]: 3: Hoare triple {79#(and (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc8#1.base|) 1) (+ |ULTIMATE.start_cmemchr_~p~0#1.offset| oldRank0)) (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc8#1.base|) 1) (+ oldRank0 (select |#length| |ULTIMATE.start_cmemchr_~p~0#1.base|))) (= |ULTIMATE.start_main_#t~malloc8#1.base| |ULTIMATE.start_cmemchr_~p~0#1.base|))} assume !!(0 != cmemchr_#t~pre2#1 % 18446744073709551616);havoc cmemchr_#t~pre2#1; {57#(and (or (and (>= oldRank0 0) (> oldRank0 (+ (select |#length| |ULTIMATE.start_main_#t~malloc8#1.base|) (* (- 1) |ULTIMATE.start_cmemchr_~p~0#1.offset|)))) unseeded) (= |ULTIMATE.start_main_#t~malloc8#1.base| |ULTIMATE.start_cmemchr_~p~0#1.base|))} is VALID [2022-02-21 03:33:00,921 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 03:33:00,936 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 03:33:00,945 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:33:00,946 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 4 letters. [2022-02-21 03:33:00,948 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:00,950 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2022-02-21 03:33:00,951 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 03:33:01,010 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 32 states and 37 transitions. Complement of second has 7 states. [2022-02-21 03:33:01,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-02-21 03:33:01,011 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:33:01,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 03:33:01,012 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-02-21 03:33:01,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:33:01,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:33:01,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 03:33:01,015 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2022-02-21 03:33:01,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:33:01,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:33:01,015 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 37 transitions. [2022-02-21 03:33:01,016 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:33:01,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:33:01,017 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 03:33:01,018 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-02-21 03:33:01,019 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 4 examples of accepted words. [2022-02-21 03:33:01,019 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 03:33:01,021 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2022-02-21 03:33:01,021 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2022-02-21 03:33:01,021 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 32 states and 37 transitions. cyclomatic complexity: 6 [2022-02-21 03:33:01,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 37 transitions. cyclomatic complexity: 6 [2022-02-21 03:33:01,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:33:01,021 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2022-02-21 03:33:01,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 4 letters. [2022-02-21 03:33:01,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 4 letters. [2022-02-21 03:33:01,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 32 states and 37 transitions. cyclomatic complexity: 6 Stem has 6 letters. Loop has 4 letters. [2022-02-21 03:33:01,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 03:33:01,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 03:33:01,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 32 states and 37 transitions. cyclomatic complexity: 6 Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:33:01,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 32 letters. Loop has 32 letters. [2022-02-21 03:33:01,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 32 letters. Loop has 32 letters. [2022-02-21 03:33:01,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 32 states and 37 transitions. cyclomatic complexity: 6 Stem has 32 letters. Loop has 32 letters. [2022-02-21 03:33:01,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,025 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 15 letters. Loop has 15 letters. [2022-02-21 03:33:01,025 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,025 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 15 letters. Loop has 15 letters. [2022-02-21 03:33:01,025 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,025 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 32 states and 37 transitions. cyclomatic complexity: 6 Stem has 15 letters. Loop has 15 letters. [2022-02-21 03:33:01,025 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,025 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 5 letters. [2022-02-21 03:33:01,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 5 letters. [2022-02-21 03:33:01,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 32 states and 37 transitions. cyclomatic complexity: 6 Stem has 5 letters. Loop has 5 letters. [2022-02-21 03:33:01,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 4 letters. [2022-02-21 03:33:01,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 4 letters. [2022-02-21 03:33:01,027 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 32 states and 37 transitions. cyclomatic complexity: 6 Stem has 6 letters. Loop has 4 letters. [2022-02-21 03:33:01,027 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 8 letters. Loop has 4 letters. [2022-02-21 03:33:01,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 8 letters. Loop has 4 letters. [2022-02-21 03:33:01,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 32 states and 37 transitions. cyclomatic complexity: 6 Stem has 8 letters. Loop has 4 letters. [2022-02-21 03:33:01,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 7 letters. Loop has 4 letters. [2022-02-21 03:33:01,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 7 letters. Loop has 4 letters. [2022-02-21 03:33:01,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 32 states and 37 transitions. cyclomatic complexity: 6 Stem has 7 letters. Loop has 4 letters. [2022-02-21 03:33:01,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 9 letters. Loop has 4 letters. [2022-02-21 03:33:01,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 9 letters. Loop has 4 letters. [2022-02-21 03:33:01,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 32 states and 37 transitions. cyclomatic complexity: 6 Stem has 9 letters. Loop has 4 letters. [2022-02-21 03:33:01,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,031 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 3 letters. Loop has 1 letters. [2022-02-21 03:33:01,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,031 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 3 letters. Loop has 1 letters. [2022-02-21 03:33:01,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,031 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 32 states and 37 transitions. cyclomatic complexity: 6 Stem has 3 letters. Loop has 1 letters. [2022-02-21 03:33:01,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,031 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 03:33:01,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,032 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 03:33:01,032 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,032 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 32 states and 37 transitions. cyclomatic complexity: 6 Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:33:01,032 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,032 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:33:01,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 03:33:01,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2022-02-21 03:33:01,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 6 letters. Loop has 4 letters. [2022-02-21 03:33:01,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,037 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 10 letters. Loop has 4 letters. [2022-02-21 03:33:01,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,037 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 6 letters. Loop has 8 letters. [2022-02-21 03:33:01,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:33:01,038 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. cyclomatic complexity: 6 [2022-02-21 03:33:01,040 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:33:01,041 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2022-02-21 03:33:01,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-02-21 03:33:01,042 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-02-21 03:33:01,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-02-21 03:33:01,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 03:33:01,042 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:33:01,043 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:33:01,043 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:33:01,043 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 03:33:01,043 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-02-21 03:33:01,043 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:33:01,043 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:33:01,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 03:33:01 BoogieIcfgContainer [2022-02-21 03:33:01,047 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 03:33:01,048 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 03:33:01,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 03:33:01,048 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 03:33:01,049 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:32:58" (3/4) ... [2022-02-21 03:33:01,051 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-21 03:33:01,051 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 03:33:01,052 INFO L158 Benchmark]: Toolchain (without parser) took 3216.39ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 74.9MB in the beginning and 82.7MB in the end (delta: -7.8MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2022-02-21 03:33:01,052 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 81.8MB. Free memory was 53.4MB in the beginning and 53.4MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:33:01,052 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.32ms. Allocated memory is still 107.0MB. Free memory was 74.6MB in the beginning and 77.8MB in the end (delta: -3.2MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2022-02-21 03:33:01,053 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.81ms. Allocated memory is still 107.0MB. Free memory was 77.8MB in the beginning and 75.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:33:01,053 INFO L158 Benchmark]: Boogie Preprocessor took 25.85ms. Allocated memory is still 107.0MB. Free memory was 75.7MB in the beginning and 74.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:33:01,053 INFO L158 Benchmark]: RCFGBuilder took 270.54ms. Allocated memory is still 107.0MB. Free memory was 74.2MB in the beginning and 64.3MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 03:33:01,054 INFO L158 Benchmark]: BuchiAutomizer took 2574.33ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 63.7MB in the beginning and 83.7MB in the end (delta: -20.0MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2022-02-21 03:33:01,054 INFO L158 Benchmark]: Witness Printer took 2.84ms. Allocated memory is still 130.0MB. Free memory was 83.7MB in the beginning and 82.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:33:01,056 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 0.16ms. Allocated memory is still 81.8MB. Free memory was 53.4MB in the beginning and 53.4MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.32ms. Allocated memory is still 107.0MB. Free memory was 74.6MB in the beginning and 77.8MB in the end (delta: -3.2MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.81ms. Allocated memory is still 107.0MB. Free memory was 77.8MB in the beginning and 75.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.85ms. Allocated memory is still 107.0MB. Free memory was 75.7MB in the beginning and 74.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 270.54ms. Allocated memory is still 107.0MB. Free memory was 74.2MB in the beginning and 64.3MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2574.33ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 63.7MB in the beginning and 83.7MB in the end (delta: -20.0MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. * Witness Printer took 2.84ms. Allocated memory is still 130.0MB. Free memory was 83.7MB in the beginning and 82.7MB in the end (delta: 1.0MB). 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 unknown-#length-unknown[__builtin_alloca (n * sizeof(char))] + -1 * p and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. 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, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 16 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital137 mio100 ax113 hnf100 lsp81 ukn101 mio100 lsp54 div208 bol100 ite100 ukn100 eq168 hnf93 smp63 dnf100 smp100 tf100 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms 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 03:33:01,080 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