./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-dietlibc/strcasecmp.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-dietlibc/strcasecmp.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 4b83d1547bf3dd46e9571984e7e0a13f5187eff03a7662628a99d75ecc5b0412 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 03:15:24,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 03:15:24,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 03:15:24,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 03:15:24,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 03:15:24,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 03:15:24,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 03:15:24,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 03:15:24,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 03:15:24,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 03:15:24,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 03:15:24,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 03:15:24,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 03:15:24,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 03:15:24,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 03:15:24,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 03:15:24,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 03:15:24,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 03:15:24,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 03:15:24,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 03:15:24,715 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 03:15:24,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 03:15:24,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 03:15:24,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 03:15:24,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 03:15:24,720 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 03:15:24,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 03:15:24,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 03:15:24,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 03:15:24,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 03:15:24,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 03:15:24,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 03:15:24,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 03:15:24,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 03:15:24,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 03:15:24,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 03:15:24,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 03:15:24,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 03:15:24,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 03:15:24,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 03:15:24,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 03:15:24,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 03:15:24,733 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-13 03:15:24,767 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 03:15:24,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 03:15:24,768 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 03:15:24,768 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 03:15:24,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 03:15:24,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 03:15:24,770 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 03:15:24,770 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 03:15:24,770 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 03:15:24,771 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 03:15:24,771 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 03:15:24,772 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 03:15:24,772 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 03:15:24,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 03:15:24,772 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 03:15:24,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 03:15:24,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 03:15:24,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 03:15:24,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 03:15:24,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 03:15:24,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 03:15:24,774 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 03:15:24,774 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 03:15:24,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 03:15:24,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 03:15:24,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 03:15:24,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 03:15:24,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 03:15:24,776 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 03:15:24,776 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b83d1547bf3dd46e9571984e7e0a13f5187eff03a7662628a99d75ecc5b0412 [2022-07-13 03:15:25,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 03:15:25,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 03:15:25,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 03:15:25,037 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 03:15:25,038 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 03:15:25,038 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/strcasecmp.i [2022-07-13 03:15:25,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cc78aa0b/4e34bf8128e34b71a200a5e4893a6e83/FLAG6d549abaf [2022-07-13 03:15:25,592 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 03:15:25,594 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/strcasecmp.i [2022-07-13 03:15:25,605 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cc78aa0b/4e34bf8128e34b71a200a5e4893a6e83/FLAG6d549abaf [2022-07-13 03:15:25,948 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cc78aa0b/4e34bf8128e34b71a200a5e4893a6e83 [2022-07-13 03:15:25,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 03:15:25,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 03:15:25,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 03:15:25,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 03:15:25,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 03:15:25,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:15:25" (1/1) ... [2022-07-13 03:15:25,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ecd407e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:15:25, skipping insertion in model container [2022-07-13 03:15:25,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:15:25" (1/1) ... [2022-07-13 03:15:25,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 03:15:25,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 03:15:26,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:15:26,259 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 03:15:26,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:15:26,332 INFO L208 MainTranslator]: Completed translation [2022-07-13 03:15:26,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:15:26 WrapperNode [2022-07-13 03:15:26,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 03:15:26,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 03:15:26,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 03:15:26,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 03:15:26,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:15:26" (1/1) ... [2022-07-13 03:15:26,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:15:26" (1/1) ... [2022-07-13 03:15:26,395 INFO L137 Inliner]: procedures = 114, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 85 [2022-07-13 03:15:26,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 03:15:26,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 03:15:26,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 03:15:26,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 03:15:26,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:15:26" (1/1) ... [2022-07-13 03:15:26,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:15:26" (1/1) ... [2022-07-13 03:15:26,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:15:26" (1/1) ... [2022-07-13 03:15:26,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:15:26" (1/1) ... [2022-07-13 03:15:26,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:15:26" (1/1) ... [2022-07-13 03:15:26,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:15:26" (1/1) ... [2022-07-13 03:15:26,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:15:26" (1/1) ... [2022-07-13 03:15:26,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 03:15:26,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 03:15:26,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 03:15:26,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 03:15:26,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:15:26" (1/1) ... [2022-07-13 03:15:26,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:26,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:26,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:26,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-13 03:15:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 03:15:26,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 03:15:26,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 03:15:26,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 03:15:26,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 03:15:26,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 03:15:26,619 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 03:15:26,620 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 03:15:26,820 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 03:15:26,825 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 03:15:26,825 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-13 03:15:26,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:15:26 BoogieIcfgContainer [2022-07-13 03:15:26,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 03:15:26,828 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 03:15:26,828 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 03:15:26,833 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 03:15:26,834 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:15:26,834 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 03:15:25" (1/3) ... [2022-07-13 03:15:26,835 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36ef6eec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:15:26, skipping insertion in model container [2022-07-13 03:15:26,835 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:15:26,836 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:15:26" (2/3) ... [2022-07-13 03:15:26,836 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36ef6eec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:15:26, skipping insertion in model container [2022-07-13 03:15:26,836 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:15:26,836 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:15:26" (3/3) ... [2022-07-13 03:15:26,838 INFO L354 chiAutomizerObserver]: Analyzing ICFG strcasecmp.i [2022-07-13 03:15:26,896 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 03:15:26,896 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 03:15:26,896 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 03:15:26,897 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 03:15:26,897 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 03:15:26,897 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 03:15:26,897 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 03:15:26,897 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 03:15:26,917 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:15:26,937 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2022-07-13 03:15:26,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:15:26,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:15:26,943 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-13 03:15:26,943 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:15:26,943 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 03:15:26,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:15:26,948 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2022-07-13 03:15:26,948 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:15:26,948 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:15:26,948 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-13 03:15:26,948 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:15:26,954 INFO L752 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 15#L524true assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 9#L526-3true [2022-07-13 03:15:26,958 INFO L754 eck$LassoCheckResult]: Loop: 9#L526-3true assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet9#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet9#1; 5#L526-2true main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 9#L526-3true [2022-07-13 03:15:26,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:26,963 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2022-07-13 03:15:26,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:26,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247209629] [2022-07-13 03:15:26,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:26,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:27,068 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:15:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:27,104 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:15:27,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:27,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2022-07-13 03:15:27,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:27,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209798216] [2022-07-13 03:15:27,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:27,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:27,126 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:15:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:27,142 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:15:27,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:27,151 INFO L85 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2022-07-13 03:15:27,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:27,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993609405] [2022-07-13 03:15:27,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:27,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:27,174 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:15:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:27,206 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:15:27,428 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:15:27,429 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:15:27,429 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:15:27,429 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:15:27,429 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:15:27,429 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:27,429 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:15:27,430 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:15:27,430 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcasecmp.i_Iteration1_Lasso [2022-07-13 03:15:27,431 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:15:27,431 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:15:27,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:27,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:27,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:27,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:27,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:27,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:27,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:27,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:27,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:27,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:27,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:27,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:27,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:27,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:27,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:27,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:27,828 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:15:27,831 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:15:27,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:27,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:27,835 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:27,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-13 03:15:27,841 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:27,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:27,849 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:15:27,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:27,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:27,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:27,851 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:15:27,851 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:15:27,871 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:27,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:27,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:27,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:27,890 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:27,896 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:27,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:27,902 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:15:27,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:27,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:27,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:27,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:15:27,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:15:27,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-13 03:15:27,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:27,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-07-13 03:15:27,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:27,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:27,941 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:27,948 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:27,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:27,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:27,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:27,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:27,964 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:27,964 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:27,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-13 03:15:27,982 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:15:27,999 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2022-07-13 03:15:27,999 INFO L444 ModelExtractionUtils]: 10 out of 22 variables were initially zero. Simplification set additionally 9 variables to zero. [2022-07-13 03:15:28,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:28,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:28,004 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:28,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-13 03:15:28,008 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:15:28,030 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-13 03:15:28,030 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:15:28,030 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~in_len~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~in_len~0#1 Supporting invariants [] [2022-07-13 03:15:28,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:28,061 INFO L293 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2022-07-13 03:15:28,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:15:28,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:15:28,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:15:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:15:28,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:15:28,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:15:28,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:15:28,149 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:15:28,150 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:15:28,195 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 89 transitions. Complement of second has 7 states. [2022-07-13 03:15:28,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:15:28,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:15:28,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2022-07-13 03:15:28,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 3 letters. Loop has 2 letters. [2022-07-13 03:15:28,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:15:28,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-13 03:15:28,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:15:28,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 3 letters. Loop has 4 letters. [2022-07-13 03:15:28,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:15:28,210 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 89 transitions. [2022-07-13 03:15:28,219 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2022-07-13 03:15:28,223 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 18 states and 23 transitions. [2022-07-13 03:15:28,224 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-07-13 03:15:28,224 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-07-13 03:15:28,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2022-07-13 03:15:28,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:15:28,225 INFO L369 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-07-13 03:15:28,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2022-07-13 03:15:28,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-07-13 03:15:28,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:15:28,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2022-07-13 03:15:28,247 INFO L392 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-07-13 03:15:28,247 INFO L374 stractBuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-07-13 03:15:28,247 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 03:15:28,247 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2022-07-13 03:15:28,249 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2022-07-13 03:15:28,249 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:15:28,249 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:15:28,249 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-07-13 03:15:28,249 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:15:28,250 INFO L752 eck$LassoCheckResult]: Stem: 142#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 143#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 151#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 148#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 144#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 145#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 137#L534-3 [2022-07-13 03:15:28,250 INFO L754 eck$LassoCheckResult]: Loop: 137#L534-3 assume !!(main_~i~1#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet13#1, main_~out~0#1.base, main_~out~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 139#L534-2 main_#t~post12#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 137#L534-3 [2022-07-13 03:15:28,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:28,251 INFO L85 PathProgramCache]: Analyzing trace with hash 889572430, now seen corresponding path program 1 times [2022-07-13 03:15:28,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:28,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59966327] [2022-07-13 03:15:28,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:28,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:28,267 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:15:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:28,279 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:15:28,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:28,279 INFO L85 PathProgramCache]: Analyzing trace with hash 2051, now seen corresponding path program 1 times [2022-07-13 03:15:28,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:28,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528050638] [2022-07-13 03:15:28,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:28,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:28,285 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:15:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:28,289 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:15:28,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:28,289 INFO L85 PathProgramCache]: Analyzing trace with hash 180614416, now seen corresponding path program 1 times [2022-07-13 03:15:28,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:28,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373627553] [2022-07-13 03:15:28,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:28,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:28,304 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:15:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:28,318 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:15:28,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:28,659 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:15:28,659 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:15:28,659 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:15:28,659 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:15:28,659 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:15:28,659 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:28,660 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:15:28,660 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:15:28,660 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcasecmp.i_Iteration2_Lasso [2022-07-13 03:15:28,660 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:15:28,660 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:15:28,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:28,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:28,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:28,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:28,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:28,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:28,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:28,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:28,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:28,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:29,113 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:15:29,113 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:15:29,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:29,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:29,114 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:29,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-13 03:15:29,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:29,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:29,123 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:15:29,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:29,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:29,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:29,124 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:15:29,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:15:29,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:29,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-07-13 03:15:29,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:29,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:29,157 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:29,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-13 03:15:29,158 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:29,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:29,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:29,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:29,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:29,166 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:29,167 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:29,173 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:29,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:29,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:29,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:29,189 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:29,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-13 03:15:29,191 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:29,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:29,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:15:29,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:29,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:29,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:29,197 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:15:29,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:15:29,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:29,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:29,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:29,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:29,216 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:29,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-13 03:15:29,218 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:29,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:29,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:29,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:29,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:29,228 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:29,228 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:29,239 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:29,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:29,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:29,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:29,266 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:29,276 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:29,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:29,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:29,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:29,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:29,286 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:29,286 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:29,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-13 03:15:29,298 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:29,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:29,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:29,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:29,327 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:29,336 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:29,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:29,343 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:15:29,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:29,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:29,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:29,344 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:15:29,344 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:15:29,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-13 03:15:29,360 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:29,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:29,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:29,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:29,380 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:29,390 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:29,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:29,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:29,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:29,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:29,410 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:29,410 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:29,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-13 03:15:29,427 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:15:29,449 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2022-07-13 03:15:29,449 INFO L444 ModelExtractionUtils]: 19 out of 37 variables were initially zero. Simplification set additionally 12 variables to zero. [2022-07-13 03:15:29,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:29,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:29,452 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:29,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-13 03:15:29,483 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:15:29,495 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-07-13 03:15:29,495 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:15:29,495 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1) = -2*ULTIMATE.start_main_~i~1#1 + 1 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_main_~out~0#1.base)_1 + 1*ULTIMATE.start_main_~out~0#1.offset + 1 >= 0] [2022-07-13 03:15:29,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:29,541 INFO L293 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2022-07-13 03:15:29,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:15:29,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 03:15:29,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:15:29,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:15:29,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 03:15:29,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:15:29,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:15:29,655 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2022-07-13 03:15:29,655 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:15:29,748 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 59 transitions. Complement of second has 10 states. [2022-07-13 03:15:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 2 non-accepting loop states 2 accepting loop states [2022-07-13 03:15:29,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:15:29,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 26 transitions. [2022-07-13 03:15:29,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 26 transitions. Stem has 6 letters. Loop has 2 letters. [2022-07-13 03:15:29,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:15:29,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 26 transitions. Stem has 8 letters. Loop has 2 letters. [2022-07-13 03:15:29,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:15:29,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 26 transitions. Stem has 6 letters. Loop has 4 letters. [2022-07-13 03:15:29,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:15:29,751 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 59 transitions. [2022-07-13 03:15:29,752 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 16 [2022-07-13 03:15:29,752 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 35 states and 45 transitions. [2022-07-13 03:15:29,753 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2022-07-13 03:15:29,753 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2022-07-13 03:15:29,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 45 transitions. [2022-07-13 03:15:29,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:15:29,753 INFO L369 hiAutomatonCegarLoop]: Abstraction has 35 states and 45 transitions. [2022-07-13 03:15:29,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 45 transitions. [2022-07-13 03:15:29,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 23. [2022-07-13 03:15:29,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 22 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:15:29,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2022-07-13 03:15:29,756 INFO L392 hiAutomatonCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-07-13 03:15:29,756 INFO L374 stractBuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-07-13 03:15:29,756 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-13 03:15:29,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2022-07-13 03:15:29,757 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2022-07-13 03:15:29,757 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:15:29,757 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:15:29,757 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:15:29,757 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:15:29,758 INFO L752 eck$LassoCheckResult]: Stem: 303#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 304#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 313#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 309#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 310#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 318#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 317#L534-3 assume !(main_~i~1#1 < main_~out_len~0#1 - 1); 297#L534-4 call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcasecmp } true;strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset, strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcasecmp_#res#1;havoc strcasecmp_#t~mem2#1, strcasecmp_#t~mem3#1, strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset, strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset, strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, strcasecmp_~x2~0#1, strcasecmp_~x1~0#1;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset;havoc strcasecmp_~x2~0#1;havoc strcasecmp_~x1~0#1; 314#L511-2 [2022-07-13 03:15:29,758 INFO L754 eck$LassoCheckResult]: Loop: 314#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 315#L512 assume strcasecmp_~x2~0#1 % 4294967296 < 26;strcasecmp_~x2~0#1 := 32 + strcasecmp_~x2~0#1; 307#L512-2 call strcasecmp_#t~mem3#1 := read~int(strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, 1);strcasecmp_~x1~0#1 := strcasecmp_#t~mem3#1 - 65;havoc strcasecmp_#t~mem3#1; 308#L513 assume strcasecmp_~x1~0#1 % 4294967296 < 26;strcasecmp_~x1~0#1 := 32 + strcasecmp_~x1~0#1; 316#L513-2 strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset := strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#t~post4#1.base, 1 + strcasecmp_#t~post4#1.offset;havoc strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset;strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset := strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#t~post5#1.base, 1 + strcasecmp_#t~post5#1.offset;havoc strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset; 311#L515 assume !(strcasecmp_~x2~0#1 % 4294967296 != strcasecmp_~x1~0#1 % 4294967296); 312#L517 assume !(4294967231 == strcasecmp_~x1~0#1 % 4294967296); 314#L511-2 [2022-07-13 03:15:29,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:29,759 INFO L85 PathProgramCache]: Analyzing trace with hash 180614358, now seen corresponding path program 1 times [2022-07-13 03:15:29,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:29,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300421291] [2022-07-13 03:15:29,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:29,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:29,773 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:15:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:29,785 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:15:29,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:29,786 INFO L85 PathProgramCache]: Analyzing trace with hash -471896131, now seen corresponding path program 1 times [2022-07-13 03:15:29,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:29,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733721786] [2022-07-13 03:15:29,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:29,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:29,803 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:15:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:29,816 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:15:29,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:29,817 INFO L85 PathProgramCache]: Analyzing trace with hash -723824312, now seen corresponding path program 1 times [2022-07-13 03:15:29,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:29,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659181873] [2022-07-13 03:15:29,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:29,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:15:29,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:15:29,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:15:29,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659181873] [2022-07-13 03:15:29,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659181873] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:15:29,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:15:29,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 03:15:29,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138383276] [2022-07-13 03:15:29,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:15:30,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:30,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:15:30,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 03:15:30,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 03:15:30,152 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:15:30,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:15:30,234 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2022-07-13 03:15:30,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 03:15:30,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 53 transitions. [2022-07-13 03:15:30,235 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 16 [2022-07-13 03:15:30,236 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 42 states and 53 transitions. [2022-07-13 03:15:30,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2022-07-13 03:15:30,236 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2022-07-13 03:15:30,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 53 transitions. [2022-07-13 03:15:30,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:15:30,237 INFO L369 hiAutomatonCegarLoop]: Abstraction has 42 states and 53 transitions. [2022-07-13 03:15:30,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 53 transitions. [2022-07-13 03:15:30,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 27. [2022-07-13 03:15:30,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:15:30,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2022-07-13 03:15:30,240 INFO L392 hiAutomatonCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-07-13 03:15:30,240 INFO L374 stractBuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-07-13 03:15:30,240 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-13 03:15:30,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2022-07-13 03:15:30,241 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2022-07-13 03:15:30,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:15:30,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:15:30,241 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:15:30,241 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:15:30,242 INFO L752 eck$LassoCheckResult]: Stem: 385#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 386#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 393#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 391#L526-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet9#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet9#1; 383#L526-2 main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 384#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 387#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 388#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 403#L534-3 assume !!(main_~i~1#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet13#1, main_~out~0#1.base, main_~out~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 397#L534-2 [2022-07-13 03:15:30,242 INFO L754 eck$LassoCheckResult]: Loop: 397#L534-2 main_#t~post12#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 398#L534-3 assume !!(main_~i~1#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet13#1, main_~out~0#1.base, main_~out~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 397#L534-2 [2022-07-13 03:15:30,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:30,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1357243766, now seen corresponding path program 1 times [2022-07-13 03:15:30,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:30,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447281924] [2022-07-13 03:15:30,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:30,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:30,255 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:15:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:30,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:15:30,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:30,267 INFO L85 PathProgramCache]: Analyzing trace with hash 2111, now seen corresponding path program 2 times [2022-07-13 03:15:30,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:30,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439198844] [2022-07-13 03:15:30,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:30,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:30,271 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:15:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:30,274 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:15:30,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:30,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1358797708, now seen corresponding path program 1 times [2022-07-13 03:15:30,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:30,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710010877] [2022-07-13 03:15:30,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:30,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:30,287 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:15:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:30,298 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:15:30,736 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:15:30,736 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:15:30,736 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:15:30,736 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:15:30,736 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:15:30,736 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:30,736 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:15:30,736 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:15:30,736 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcasecmp.i_Iteration4_Lasso [2022-07-13 03:15:30,736 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:15:30,736 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:15:30,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:30,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:30,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:30,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:30,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:30,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:30,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:30,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:30,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:31,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:31,256 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:15:31,256 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:15:31,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:31,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:31,258 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:31,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-13 03:15:31,268 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 [2022-07-13 03:15:31,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:31,278 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:15:31,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:31,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:31,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:31,279 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:15:31,279 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:15:31,291 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:31,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:31,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:31,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:31,314 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:31,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-13 03:15:31,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:31,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:31,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:31,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:31,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:31,323 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:31,323 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:31,331 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:31,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:31,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:31,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:31,347 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:31,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-13 03:15:31,349 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:31,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:31,354 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:15:31,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:31,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:31,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:31,355 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:15:31,355 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:15:31,356 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:31,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:31,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:31,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:31,373 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:31,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-13 03:15:31,375 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:31,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:31,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:15:31,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:31,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:31,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:31,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:15:31,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:15:31,382 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:31,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:31,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:31,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:31,401 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:31,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-13 03:15:31,407 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:31,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:31,412 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:15:31,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:31,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:31,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:31,412 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:15:31,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:15:31,413 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:31,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:31,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:31,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:31,429 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:31,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-13 03:15:31,432 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:31,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:31,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:15:31,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:31,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:31,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:31,438 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:15:31,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:15:31,439 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:31,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:31,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:31,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:31,456 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:31,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-13 03:15:31,468 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:31,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:31,474 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:15:31,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:31,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:31,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:31,475 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:15:31,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:15:31,491 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:31,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:31,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:31,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:31,524 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:31,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-13 03:15:31,526 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:31,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:31,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:31,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:31,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:31,533 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:31,533 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:31,559 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:31,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:31,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:31,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:31,582 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:31,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-13 03:15:31,588 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:31,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:31,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:31,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:31,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:31,598 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:31,598 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:31,613 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:31,629 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-07-13 03:15:31,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:31,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:31,630 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:31,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-07-13 03:15:31,632 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:31,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:31,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:31,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:31,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:31,645 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:31,645 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:31,659 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:31,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-07-13 03:15:31,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:31,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:31,678 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:31,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-07-13 03:15:31,681 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:31,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:31,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:31,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:31,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:31,690 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:31,690 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:31,703 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:31,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-07-13 03:15:31,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:31,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:31,724 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:31,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-07-13 03:15:31,726 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:31,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:31,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:31,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:31,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:31,733 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:31,733 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:31,735 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:31,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-07-13 03:15:31,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:31,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:31,750 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:31,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-07-13 03:15:31,752 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:31,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:31,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:31,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:31,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:31,760 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:31,760 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:31,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:31,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:31,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:31,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:31,785 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:31,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-07-13 03:15:31,792 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:31,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:31,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:31,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:31,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:31,800 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:31,800 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:31,823 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:31,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:31,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:31,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:31,846 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:31,851 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:31,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:31,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:31,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:31,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:31,860 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:31,860 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:31,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-07-13 03:15:31,875 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:31,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:31,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:31,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:31,901 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:31,903 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:31,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:31,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:31,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:31,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:31,919 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:31,919 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:31,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-07-13 03:15:31,941 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:15:31,962 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2022-07-13 03:15:31,962 INFO L444 ModelExtractionUtils]: 13 out of 40 variables were initially zero. Simplification set additionally 23 variables to zero. [2022-07-13 03:15:31,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:31,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:31,964 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:31,971 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:15:31,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-07-13 03:15:31,999 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-13 03:15:32,000 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:15:32,000 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~out~0#1.offset, ULTIMATE.start_main_~i~1#1, v_rep(select #length ULTIMATE.start_main_~out~0#1.base)_2) = -1*ULTIMATE.start_main_~out~0#1.offset - 1*ULTIMATE.start_main_~i~1#1 + 1*v_rep(select #length ULTIMATE.start_main_~out~0#1.base)_2 Supporting invariants [] [2022-07-13 03:15:32,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:32,050 INFO L293 tatePredicateManager]: 10 out of 10 supporting invariants were superfluous and have been removed [2022-07-13 03:15:32,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:15:32,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:15:32,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:15:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:15:32,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:15:32,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:15:32,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:15:32,111 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:15:32,111 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:15:32,168 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 46 states and 61 transitions. Complement of second has 4 states. [2022-07-13 03:15:32,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:15:32,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:15:32,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2022-07-13 03:15:32,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 9 letters. Loop has 2 letters. [2022-07-13 03:15:32,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:15:32,170 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 11 letters. Loop has 2 letters. [2022-07-13 03:15:32,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:15:32,170 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 9 letters. Loop has 4 letters. [2022-07-13 03:15:32,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:15:32,170 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 61 transitions. [2022-07-13 03:15:32,171 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2022-07-13 03:15:32,172 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 37 states and 48 transitions. [2022-07-13 03:15:32,172 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2022-07-13 03:15:32,172 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2022-07-13 03:15:32,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 48 transitions. [2022-07-13 03:15:32,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:15:32,173 INFO L369 hiAutomatonCegarLoop]: Abstraction has 37 states and 48 transitions. [2022-07-13 03:15:32,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 48 transitions. [2022-07-13 03:15:32,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2022-07-13 03:15:32,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:15:32,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2022-07-13 03:15:32,175 INFO L392 hiAutomatonCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-07-13 03:15:32,175 INFO L374 stractBuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-07-13 03:15:32,175 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-13 03:15:32,175 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2022-07-13 03:15:32,176 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-07-13 03:15:32,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:15:32,176 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:15:32,176 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:15:32,176 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:15:32,177 INFO L752 eck$LassoCheckResult]: Stem: 550#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 551#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 560#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 556#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 552#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 553#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 561#L534-3 assume !(main_~i~1#1 < main_~out_len~0#1 - 1); 568#L534-4 call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcasecmp } true;strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset, strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcasecmp_#res#1;havoc strcasecmp_#t~mem2#1, strcasecmp_#t~mem3#1, strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset, strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset, strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, strcasecmp_~x2~0#1, strcasecmp_~x1~0#1;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset;havoc strcasecmp_~x2~0#1;havoc strcasecmp_~x1~0#1; 570#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 566#L512 assume !(strcasecmp_~x2~0#1 % 4294967296 < 26); 554#L512-2 [2022-07-13 03:15:32,177 INFO L754 eck$LassoCheckResult]: Loop: 554#L512-2 call strcasecmp_#t~mem3#1 := read~int(strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, 1);strcasecmp_~x1~0#1 := strcasecmp_#t~mem3#1 - 65;havoc strcasecmp_#t~mem3#1; 555#L513 assume strcasecmp_~x1~0#1 % 4294967296 < 26;strcasecmp_~x1~0#1 := 32 + strcasecmp_~x1~0#1; 565#L513-2 strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset := strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#t~post4#1.base, 1 + strcasecmp_#t~post4#1.offset;havoc strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset;strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset := strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#t~post5#1.base, 1 + strcasecmp_#t~post5#1.offset;havoc strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset; 558#L515 assume !(strcasecmp_~x2~0#1 % 4294967296 != strcasecmp_~x1~0#1 % 4294967296); 559#L517 assume !(4294967231 == strcasecmp_~x1~0#1 % 4294967296); 563#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 564#L512 assume strcasecmp_~x2~0#1 % 4294967296 < 26;strcasecmp_~x2~0#1 := 32 + strcasecmp_~x2~0#1; 554#L512-2 [2022-07-13 03:15:32,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:32,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1771707771, now seen corresponding path program 1 times [2022-07-13 03:15:32,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:32,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480600109] [2022-07-13 03:15:32,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:32,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:32,193 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:15:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:32,204 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:15:32,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:32,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:32,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1652808163, now seen corresponding path program 2 times [2022-07-13 03:15:32,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:32,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763936101] [2022-07-13 03:15:32,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:32,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:32,214 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:15:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:32,222 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:15:32,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:32,222 INFO L85 PathProgramCache]: Analyzing trace with hash -619806935, now seen corresponding path program 1 times [2022-07-13 03:15:32,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:32,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330569041] [2022-07-13 03:15:32,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:32,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:15:32,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:15:32,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:15:32,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330569041] [2022-07-13 03:15:32,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330569041] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 03:15:32,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091518902] [2022-07-13 03:15:32,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:32,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 03:15:32,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:32,323 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 03:15:32,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-07-13 03:15:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:15:32,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-13 03:15:32,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:15:32,422 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-13 03:15:32,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:15:32,489 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 03:15:32,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091518902] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:15:32,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 03:15:32,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 12 [2022-07-13 03:15:32,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350440056] [2022-07-13 03:15:32,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:15:32,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:15:32,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 03:15:32,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-13 03:15:32,696 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. cyclomatic complexity: 11 Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:15:32,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:15:32,783 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions. [2022-07-13 03:15:32,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 03:15:32,784 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 53 transitions. [2022-07-13 03:15:32,784 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-07-13 03:15:32,785 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 25 states and 31 transitions. [2022-07-13 03:15:32,785 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-07-13 03:15:32,785 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-07-13 03:15:32,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 31 transitions. [2022-07-13 03:15:32,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:15:32,785 INFO L369 hiAutomatonCegarLoop]: Abstraction has 25 states and 31 transitions. [2022-07-13 03:15:32,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 31 transitions. [2022-07-13 03:15:32,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2022-07-13 03:15:32,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.25) internal successors, (30), 23 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:15:32,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2022-07-13 03:15:32,787 INFO L392 hiAutomatonCegarLoop]: Abstraction has 24 states and 30 transitions. [2022-07-13 03:15:32,787 INFO L374 stractBuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2022-07-13 03:15:32,787 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-13 03:15:32,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 30 transitions. [2022-07-13 03:15:32,788 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-07-13 03:15:32,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:15:32,788 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:15:32,788 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:15:32,788 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:15:32,788 INFO L752 eck$LassoCheckResult]: Stem: 697#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 698#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 704#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 701#L526-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet9#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet9#1; 693#L526-2 main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 694#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 695#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 696#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 705#L534-3 assume !(main_~i~1#1 < main_~out_len~0#1 - 1); 710#L534-4 call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcasecmp } true;strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset, strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcasecmp_#res#1;havoc strcasecmp_#t~mem2#1, strcasecmp_#t~mem3#1, strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset, strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset, strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, strcasecmp_~x2~0#1, strcasecmp_~x1~0#1;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset;havoc strcasecmp_~x2~0#1;havoc strcasecmp_~x1~0#1; 707#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 708#L512 assume !(strcasecmp_~x2~0#1 % 4294967296 < 26); 699#L512-2 [2022-07-13 03:15:32,789 INFO L754 eck$LassoCheckResult]: Loop: 699#L512-2 call strcasecmp_#t~mem3#1 := read~int(strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, 1);strcasecmp_~x1~0#1 := strcasecmp_#t~mem3#1 - 65;havoc strcasecmp_#t~mem3#1; 700#L513 assume strcasecmp_~x1~0#1 % 4294967296 < 26;strcasecmp_~x1~0#1 := 32 + strcasecmp_~x1~0#1; 709#L513-2 strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset := strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#t~post4#1.base, 1 + strcasecmp_#t~post4#1.offset;havoc strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset;strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset := strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#t~post5#1.base, 1 + strcasecmp_#t~post5#1.offset;havoc strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset; 702#L515 assume !(strcasecmp_~x2~0#1 % 4294967296 != strcasecmp_~x1~0#1 % 4294967296); 703#L517 assume !(4294967231 == strcasecmp_~x1~0#1 % 4294967296); 711#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 712#L512 assume strcasecmp_~x2~0#1 % 4294967296 < 26;strcasecmp_~x2~0#1 := 32 + strcasecmp_~x2~0#1; 699#L512-2 [2022-07-13 03:15:32,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:32,789 INFO L85 PathProgramCache]: Analyzing trace with hash 826888793, now seen corresponding path program 1 times [2022-07-13 03:15:32,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:32,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800349918] [2022-07-13 03:15:32,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:32,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:32,802 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:15:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:32,811 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:15:32,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:32,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1652808163, now seen corresponding path program 3 times [2022-07-13 03:15:32,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:32,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34350728] [2022-07-13 03:15:32,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:32,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:32,818 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:15:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:32,823 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:15:32,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:32,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1293831029, now seen corresponding path program 1 times [2022-07-13 03:15:32,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:32,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362724503] [2022-07-13 03:15:32,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:32,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:15:32,909 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 03:15:32,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:15:32,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362724503] [2022-07-13 03:15:32,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362724503] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:15:32,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:15:32,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 03:15:32,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136661556] [2022-07-13 03:15:32,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:15:33,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:15:33,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 03:15:33,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 03:15:33,087 INFO L87 Difference]: Start difference. First operand 24 states and 30 transitions. cyclomatic complexity: 9 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:15:33,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:15:33,197 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2022-07-13 03:15:33,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 03:15:33,198 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 47 transitions. [2022-07-13 03:15:33,198 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2022-07-13 03:15:33,199 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 37 states and 45 transitions. [2022-07-13 03:15:33,199 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2022-07-13 03:15:33,199 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2022-07-13 03:15:33,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 45 transitions. [2022-07-13 03:15:33,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:15:33,199 INFO L369 hiAutomatonCegarLoop]: Abstraction has 37 states and 45 transitions. [2022-07-13 03:15:33,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 45 transitions. [2022-07-13 03:15:33,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2022-07-13 03:15:33,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:15:33,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2022-07-13 03:15:33,202 INFO L392 hiAutomatonCegarLoop]: Abstraction has 26 states and 32 transitions. [2022-07-13 03:15:33,202 INFO L374 stractBuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2022-07-13 03:15:33,202 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-13 03:15:33,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 32 transitions. [2022-07-13 03:15:33,202 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-07-13 03:15:33,202 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:15:33,202 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:15:33,203 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:15:33,203 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:15:33,203 INFO L752 eck$LassoCheckResult]: Stem: 782#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 783#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 791#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 788#L526-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet9#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet9#1; 780#L526-2 main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 781#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 784#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 785#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 792#L534-3 assume !!(main_~i~1#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet13#1, main_~out~0#1.base, main_~out~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 793#L534-2 main_#t~post12#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 776#L534-3 assume !(main_~i~1#1 < main_~out_len~0#1 - 1); 777#L534-4 call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcasecmp } true;strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset, strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcasecmp_#res#1;havoc strcasecmp_#t~mem2#1, strcasecmp_#t~mem3#1, strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset, strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset, strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, strcasecmp_~x2~0#1, strcasecmp_~x1~0#1;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset;havoc strcasecmp_~x2~0#1;havoc strcasecmp_~x1~0#1; 794#L511-2 [2022-07-13 03:15:33,203 INFO L754 eck$LassoCheckResult]: Loop: 794#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 795#L512 assume strcasecmp_~x2~0#1 % 4294967296 < 26;strcasecmp_~x2~0#1 := 32 + strcasecmp_~x2~0#1; 797#L512-2 call strcasecmp_#t~mem3#1 := read~int(strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, 1);strcasecmp_~x1~0#1 := strcasecmp_#t~mem3#1 - 65;havoc strcasecmp_#t~mem3#1; 799#L513 assume strcasecmp_~x1~0#1 % 4294967296 < 26;strcasecmp_~x1~0#1 := 32 + strcasecmp_~x1~0#1; 796#L513-2 strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset := strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#t~post4#1.base, 1 + strcasecmp_#t~post4#1.offset;havoc strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset;strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset := strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#t~post5#1.base, 1 + strcasecmp_#t~post5#1.offset;havoc strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset; 789#L515 assume !(strcasecmp_~x2~0#1 % 4294967296 != strcasecmp_~x1~0#1 % 4294967296); 790#L517 assume !(4294967231 == strcasecmp_~x1~0#1 % 4294967296); 794#L511-2 [2022-07-13 03:15:33,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:33,204 INFO L85 PathProgramCache]: Analyzing trace with hash 826943990, now seen corresponding path program 1 times [2022-07-13 03:15:33,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:33,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121326058] [2022-07-13 03:15:33,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:33,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:33,222 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:15:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:33,238 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:15:33,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:33,244 INFO L85 PathProgramCache]: Analyzing trace with hash -471896131, now seen corresponding path program 4 times [2022-07-13 03:15:33,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:33,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669257643] [2022-07-13 03:15:33,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:33,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:33,254 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:15:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:33,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:15:33,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:33,271 INFO L85 PathProgramCache]: Analyzing trace with hash 100997160, now seen corresponding path program 1 times [2022-07-13 03:15:33,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:15:33,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066845562] [2022-07-13 03:15:33,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:15:33,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:15:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:33,298 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:15:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:15:33,323 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:15:34,063 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:15:34,063 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:15:34,063 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:15:34,064 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:15:34,064 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:15:34,064 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:34,064 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:15:34,064 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:15:34,064 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcasecmp.i_Iteration7_Lasso [2022-07-13 03:15:34,064 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:15:34,064 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:15:34,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:34,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:34,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:34,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:34,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:34,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:34,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:34,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:34,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:34,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:34,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:34,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:34,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:34,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:34,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:34,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:34,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:34,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:15:35,189 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:15:35,189 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:15:35,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:35,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:35,190 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:35,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-07-13 03:15:35,198 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:35,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:35,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:15:35,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:35,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:35,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:35,204 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:15:35,204 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:15:35,205 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:35,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2022-07-13 03:15:35,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:35,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:35,221 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:35,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-07-13 03:15:35,223 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:35,229 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:35,229 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:15:35,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:35,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:35,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:35,232 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:15:35,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:15:35,233 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:35,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2022-07-13 03:15:35,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:35,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:35,249 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:35,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-07-13 03:15:35,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:35,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:35,257 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:15:35,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:35,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:35,257 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:35,257 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:15:35,257 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:15:35,258 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:35,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-07-13 03:15:35,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:35,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:35,274 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:35,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-07-13 03:15:35,276 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:35,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:35,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:15:35,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:35,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:35,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:35,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:15:35,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:15:35,284 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:35,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2022-07-13 03:15:35,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:35,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:35,300 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:35,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-07-13 03:15:35,301 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:35,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:35,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:35,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:35,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:35,308 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:35,308 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:35,310 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:35,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2022-07-13 03:15:35,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:35,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:35,326 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:35,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-07-13 03:15:35,332 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:35,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:35,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:35,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:35,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:35,349 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:35,349 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:35,368 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:35,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2022-07-13 03:15:35,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:35,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:35,386 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:35,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-07-13 03:15:35,387 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:35,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:35,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:35,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:35,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:35,395 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:35,395 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:35,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:35,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2022-07-13 03:15:35,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:35,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:35,413 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:35,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-07-13 03:15:35,415 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:35,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:35,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:35,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:35,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:35,422 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:35,422 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:35,424 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:35,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:35,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:35,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:35,441 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:35,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-07-13 03:15:35,447 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:35,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:35,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:35,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:35,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:35,454 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:35,454 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:35,456 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:15:35,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:35,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:35,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:35,472 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:35,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-07-13 03:15:35,474 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:15:35,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:15:35,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:15:35,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:15:35,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:15:35,498 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:15:35,498 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:15:35,522 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:15:35,549 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2022-07-13 03:15:35,549 INFO L444 ModelExtractionUtils]: 8 out of 55 variables were initially zero. Simplification set additionally 44 variables to zero. [2022-07-13 03:15:35,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:15:35,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:15:35,551 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:15:35,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-07-13 03:15:35,553 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:15:35,561 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-13 03:15:35,561 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:15:35,561 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strcasecmp_~s2#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc7#1.base)_4) = -1*ULTIMATE.start_strcasecmp_~s2#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc7#1.base)_4 Supporting invariants [] [2022-07-13 03:15:35,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:35,648 INFO L293 tatePredicateManager]: 22 out of 24 supporting invariants were superfluous and have been removed [2022-07-13 03:15:35,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:15:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:15:35,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-13 03:15:35,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:15:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:15:35,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-13 03:15:35,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:15:35,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:35,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:15:35,832 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2022-07-13 03:15:35,832 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 32 transitions. cyclomatic complexity: 9 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:15:35,865 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 32 transitions. cyclomatic complexity: 9. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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 37 states and 48 transitions. Complement of second has 8 states. [2022-07-13 03:15:35,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:15:35,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:15:35,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2022-07-13 03:15:35,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 12 letters. Loop has 7 letters. [2022-07-13 03:15:35,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:15:35,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 19 letters. Loop has 7 letters. [2022-07-13 03:15:35,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:15:35,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 12 letters. Loop has 14 letters. [2022-07-13 03:15:35,867 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:15:35,867 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 48 transitions. [2022-07-13 03:15:35,867 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:15:35,867 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 0 states and 0 transitions. [2022-07-13 03:15:35,868 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-13 03:15:35,868 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-13 03:15:35,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-13 03:15:35,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:15:35,868 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:15:35,868 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:15:35,868 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:15:35,868 INFO L287 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-07-13 03:15:35,868 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-13 03:15:35,868 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:15:35,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-13 03:15:35,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 03:15:35 BoogieIcfgContainer [2022-07-13 03:15:35,874 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 03:15:35,874 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 03:15:35,874 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 03:15:35,875 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 03:15:35,875 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:15:26" (3/4) ... [2022-07-13 03:15:35,877 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 03:15:35,877 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 03:15:35,878 INFO L158 Benchmark]: Toolchain (without parser) took 9926.96ms. Allocated memory was 98.6MB in the beginning and 144.7MB in the end (delta: 46.1MB). Free memory was 66.9MB in the beginning and 98.5MB in the end (delta: -31.6MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2022-07-13 03:15:35,878 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory was 52.7MB in the beginning and 52.6MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:15:35,878 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.87ms. Allocated memory is still 98.6MB. Free memory was 66.7MB in the beginning and 67.3MB in the end (delta: -617.4kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-13 03:15:35,878 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.48ms. Allocated memory is still 98.6MB. Free memory was 67.3MB in the beginning and 65.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:15:35,879 INFO L158 Benchmark]: Boogie Preprocessor took 38.56ms. Allocated memory is still 98.6MB. Free memory was 65.3MB in the beginning and 64.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:15:35,879 INFO L158 Benchmark]: RCFGBuilder took 391.03ms. Allocated memory is still 98.6MB. Free memory was 63.9MB in the beginning and 52.7MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-13 03:15:35,879 INFO L158 Benchmark]: BuchiAutomizer took 9045.96ms. Allocated memory was 98.6MB in the beginning and 144.7MB in the end (delta: 46.1MB). Free memory was 52.4MB in the beginning and 98.5MB in the end (delta: -46.2MB). Peak memory consumption was 602.1kB. Max. memory is 16.1GB. [2022-07-13 03:15:35,879 INFO L158 Benchmark]: Witness Printer took 2.84ms. Allocated memory is still 144.7MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:15:35,880 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory was 52.7MB in the beginning and 52.6MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.87ms. Allocated memory is still 98.6MB. Free memory was 66.7MB in the beginning and 67.3MB in the end (delta: -617.4kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.48ms. Allocated memory is still 98.6MB. Free memory was 67.3MB in the beginning and 65.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.56ms. Allocated memory is still 98.6MB. Free memory was 65.3MB in the beginning and 64.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 391.03ms. Allocated memory is still 98.6MB. Free memory was 63.9MB in the beginning and 52.7MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 9045.96ms. Allocated memory was 98.6MB in the beginning and 144.7MB in the end (delta: 46.1MB). Free memory was 52.4MB in the beginning and 98.5MB in the end (delta: -46.2MB). Peak memory consumption was 602.1kB. Max. memory is 16.1GB. * Witness Printer took 2.84ms. Allocated memory is still 144.7MB. Free memory is still 98.5MB. 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 7 terminating modules (3 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + in_len and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 1 and consists of 7 locations. One deterministic module has affine ranking function -1 * out + unknown-#length-unknown[out] + -1 * i and consists of 3 locations. One deterministic module has affine ranking function -1 * s2 + unknown-#length-unknown[__builtin_alloca (in_len)] and consists of 6 locations. 3 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.9s and 8 iterations. TraceHistogramMax:1. Analysis of lassos took 7.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 49 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 264 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 262 mSDsluCounter, 355 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 239 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 212 IncrementalHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 116 mSDtfsCounter, 212 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN0 SILU0 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital170 mio100 ax100 hnf100 lsp95 ukn85 mio100 lsp56 div105 bol100 ite100 ukn100 eq170 hnf90 smp96 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 90ms VariablesStem: 6 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-13 03:15:35,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-07-13 03:15:36,114 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