./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-dietlibc/strrchr.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-dietlibc/strrchr.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 b850f5453e922b3972aa9b5b79a1b07337c08d581cc5e6a2a56803408dc479cf --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 14:24:09,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 14:24:09,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 14:24:09,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 14:24:09,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 14:24:09,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 14:24:09,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 14:24:09,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 14:24:09,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 14:24:09,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 14:24:09,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 14:24:09,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 14:24:09,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 14:24:09,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 14:24:09,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 14:24:09,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 14:24:09,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 14:24:09,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 14:24:09,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 14:24:09,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 14:24:09,718 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 14:24:09,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 14:24:09,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 14:24:09,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 14:24:09,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 14:24:09,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 14:24:09,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 14:24:09,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 14:24:09,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 14:24:09,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 14:24:09,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 14:24:09,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 14:24:09,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 14:24:09,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 14:24:09,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 14:24:09,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 14:24:09,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 14:24:09,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 14:24:09,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 14:24:09,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 14:24:09,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 14:24:09,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 14:24:09,736 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-23 14:24:09,762 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 14:24:09,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 14:24:09,763 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 14:24:09,763 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 14:24:09,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 14:24:09,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 14:24:09,765 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 14:24:09,765 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 14:24:09,765 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 14:24:09,766 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 14:24:09,766 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 14:24:09,766 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 14:24:09,767 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 14:24:09,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 14:24:09,767 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 14:24:09,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 14:24:09,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 14:24:09,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 14:24:09,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 14:24:09,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 14:24:09,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 14:24:09,769 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 14:24:09,769 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 14:24:09,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 14:24:09,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 14:24:09,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 14:24:09,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 14:24:09,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 14:24:09,771 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 14:24:09,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b850f5453e922b3972aa9b5b79a1b07337c08d581cc5e6a2a56803408dc479cf [2022-07-23 14:24:09,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 14:24:09,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 14:24:09,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 14:24:09,997 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 14:24:09,998 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 14:24:09,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/strrchr.i [2022-07-23 14:24:10,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/749e5c4af/edc43a4409574934b47f937c5a6c8966/FLAG722121935 [2022-07-23 14:24:10,443 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 14:24:10,443 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/strrchr.i [2022-07-23 14:24:10,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/749e5c4af/edc43a4409574934b47f937c5a6c8966/FLAG722121935 [2022-07-23 14:24:10,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/749e5c4af/edc43a4409574934b47f937c5a6c8966 [2022-07-23 14:24:10,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 14:24:10,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 14:24:10,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 14:24:10,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 14:24:10,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 14:24:10,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:24:10" (1/1) ... [2022-07-23 14:24:10,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5588bcfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:24:10, skipping insertion in model container [2022-07-23 14:24:10,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:24:10" (1/1) ... [2022-07-23 14:24:10,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 14:24:10,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 14:24:10,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:24:10,686 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 14:24:10,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:24:10,745 INFO L208 MainTranslator]: Completed translation [2022-07-23 14:24:10,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:24:10 WrapperNode [2022-07-23 14:24:10,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 14:24:10,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 14:24:10,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 14:24:10,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 14:24:10,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:24:10" (1/1) ... [2022-07-23 14:24:10,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:24:10" (1/1) ... [2022-07-23 14:24:10,799 INFO L137 Inliner]: procedures = 114, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 100 [2022-07-23 14:24:10,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 14:24:10,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 14:24:10,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 14:24:10,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 14:24:10,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:24:10" (1/1) ... [2022-07-23 14:24:10,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:24:10" (1/1) ... [2022-07-23 14:24:10,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:24:10" (1/1) ... [2022-07-23 14:24:10,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:24:10" (1/1) ... [2022-07-23 14:24:10,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:24:10" (1/1) ... [2022-07-23 14:24:10,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:24:10" (1/1) ... [2022-07-23 14:24:10,821 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:24:10" (1/1) ... [2022-07-23 14:24:10,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 14:24:10,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 14:24:10,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 14:24:10,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 14:24:10,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:24:10" (1/1) ... [2022-07-23 14:24:10,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:10,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:10,875 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:24:10,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-23 14:24:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 14:24:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 14:24:10,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 14:24:10,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 14:24:10,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 14:24:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 14:24:11,008 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 14:24:11,010 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 14:24:11,203 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 14:24:11,207 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 14:24:11,223 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 14:24:11,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:24:11 BoogieIcfgContainer [2022-07-23 14:24:11,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 14:24:11,226 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 14:24:11,226 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 14:24:11,228 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 14:24:11,229 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:24:11,229 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 02:24:10" (1/3) ... [2022-07-23 14:24:11,230 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3859bb95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:24:11, skipping insertion in model container [2022-07-23 14:24:11,230 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:24:11,230 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:24:10" (2/3) ... [2022-07-23 14:24:11,230 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3859bb95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:24:11, skipping insertion in model container [2022-07-23 14:24:11,231 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:24:11,231 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:24:11" (3/3) ... [2022-07-23 14:24:11,232 INFO L354 chiAutomizerObserver]: Analyzing ICFG strrchr.i [2022-07-23 14:24:11,284 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 14:24:11,285 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 14:24:11,285 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 14:24:11,285 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 14:24:11,285 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 14:24:11,285 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 14:24:11,285 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 14:24:11,285 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 14:24:11,288 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:24:11,323 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2022-07-23 14:24:11,323 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:24:11,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:24:11,328 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-23 14:24:11,328 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:24:11,335 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 14:24:11,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:24:11,337 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2022-07-23 14:24:11,338 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:24:11,338 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:24:11,338 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-23 14:24:11,338 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:24:11,343 INFO L752 eck$LassoCheckResult]: Stem: 3#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~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet17#1, main_#t~post16#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 12#L521true assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 13#L523-3true [2022-07-23 14:24:11,344 INFO L754 eck$LassoCheckResult]: Loop: 13#L523-3true assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 20#L523-2true main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 13#L523-3true [2022-07-23 14:24:11,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:11,350 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2022-07-23 14:24:11,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:11,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065507610] [2022-07-23 14:24:11,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:11,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:11,437 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:24:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:11,465 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:24:11,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:11,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2022-07-23 14:24:11,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:11,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882282229] [2022-07-23 14:24:11,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:11,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:11,484 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:24:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:11,498 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:24:11,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:11,505 INFO L85 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2022-07-23 14:24:11,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:11,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437169464] [2022-07-23 14:24:11,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:11,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:11,521 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:24:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:11,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:24:11,737 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:24:11,738 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:24:11,738 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:24:11,738 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:24:11,738 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:24:11,738 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:11,738 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:24:11,739 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:24:11,739 INFO L133 ssoRankerPreferences]: Filename of dumped script: strrchr.i_Iteration1_Lasso [2022-07-23 14:24:11,739 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:24:11,740 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:24:11,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:11,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:11,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:11,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:11,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:11,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:11,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:11,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:11,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:11,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:12,012 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:24:12,015 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:24:12,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:12,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:12,018 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:24:12,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-23 14:24:12,029 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:12,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:12,035 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:12,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:12,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:12,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:12,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:12,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:12,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:12,071 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 [2022-07-23 14:24:12,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:12,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:12,073 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:24:12,090 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:12,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:12,095 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:12,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:12,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:12,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:12,097 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:12,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:12,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-23 14:24:12,102 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:12,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-23 14:24:12,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:12,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:12,122 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:24:12,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-23 14:24:12,125 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:12,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:12,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:12,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:12,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:12,133 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:24:12,133 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:24:12,147 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:12,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-23 14:24:12,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:12,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:12,181 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:24:12,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-23 14:24:12,202 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:12,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:12,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:12,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:12,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:12,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:12,209 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:12,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:12,215 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:12,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-23 14:24:12,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:12,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:12,232 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:24:12,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-23 14:24:12,235 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:12,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:12,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:12,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:12,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:12,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:12,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:12,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:12,257 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:12,275 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 [2022-07-23 14:24:12,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:12,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:12,276 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:24:12,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-23 14:24:12,285 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:12,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:12,291 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:12,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:12,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:12,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:12,291 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:12,291 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:12,302 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:12,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-23 14:24:12,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:12,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:12,348 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:24:12,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-23 14:24:12,358 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:12,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:12,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:12,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:12,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:12,365 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:24:12,365 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:24:12,383 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:12,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-07-23 14:24:12,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:12,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:12,417 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:24:12,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-23 14:24:12,419 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:12,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:12,424 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:12,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:12,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:12,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:12,425 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:12,425 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:12,441 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:12,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-23 14:24:12,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:12,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:12,471 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) [2022-07-23 14:24:12,473 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 [2022-07-23 14:24:12,474 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 [2022-07-23 14:24:12,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:12,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:12,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:12,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:12,482 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:24:12,482 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:24:12,502 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:12,533 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 [2022-07-23 14:24:12,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:12,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:12,547 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) [2022-07-23 14:24:12,548 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 [2022-07-23 14:24:12,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:12,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:12,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:12,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:12,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:12,558 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:24:12,558 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:24:12,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:12,610 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 [2022-07-23 14:24:12,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:12,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:12,611 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) [2022-07-23 14:24:12,613 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 [2022-07-23 14:24:12,614 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:12,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:12,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:12,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:12,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:12,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:12,620 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:12,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:12,623 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:12,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-07-23 14:24:12,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:12,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:12,640 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) [2022-07-23 14:24:12,641 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 [2022-07-23 14:24:12,642 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:12,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:12,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:12,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:12,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:12,660 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:24:12,660 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:24:12,671 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:12,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-07-23 14:24:12,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:12,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:12,688 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) [2022-07-23 14:24:12,689 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 [2022-07-23 14:24:12,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:12,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:12,696 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:12,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:12,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:12,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:12,696 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:12,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:12,697 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:12,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-07-23 14:24:12,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:12,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:12,718 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) [2022-07-23 14:24:12,719 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 [2022-07-23 14:24:12,720 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:12,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:12,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:12,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:12,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:12,731 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:24:12,731 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:24:12,748 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:24:12,763 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2022-07-23 14:24:12,763 INFO L444 ModelExtractionUtils]: 9 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. [2022-07-23 14:24:12,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:12,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:12,791 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) [2022-07-23 14:24:12,852 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:24:12,860 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 [2022-07-23 14:24:12,870 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-23 14:24:12,870 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:24:12,871 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 [] [2022-07-23 14:24:12,893 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 [2022-07-23 14:24:12,900 INFO L293 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2022-07-23 14:24:12,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:24:12,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:24:12,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:24:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:24:12,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:24:12,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:24:12,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:24:12,975 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 [2022-07-23 14:24:12,979 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 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) [2022-07-23 14:24:13,035 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 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 65 states and 97 transitions. Complement of second has 7 states. [2022-07-23 14:24:13,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 14:24:13,042 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) [2022-07-23 14:24:13,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 65 transitions. [2022-07-23 14:24:13,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 65 transitions. Stem has 3 letters. Loop has 2 letters. [2022-07-23 14:24:13,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:24:13,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 65 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-23 14:24:13,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:24:13,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 65 transitions. Stem has 3 letters. Loop has 4 letters. [2022-07-23 14:24:13,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:24:13,046 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 97 transitions. [2022-07-23 14:24:13,056 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-07-23 14:24:13,058 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 20 states and 26 transitions. [2022-07-23 14:24:13,059 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-07-23 14:24:13,059 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-07-23 14:24:13,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2022-07-23 14:24:13,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 14:24:13,060 INFO L369 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-07-23 14:24:13,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2022-07-23 14:24:13,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-07-23 14:24:13,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.3) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:24:13,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2022-07-23 14:24:13,075 INFO L392 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-07-23 14:24:13,075 INFO L374 stractBuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-07-23 14:24:13,075 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 14:24:13,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2022-07-23 14:24:13,075 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-07-23 14:24:13,076 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:24:13,076 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:24:13,076 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-23 14:24:13,076 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 14:24:13,076 INFO L752 eck$LassoCheckResult]: Stem: 143#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 144#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet17#1, main_#t~post16#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 152#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 154#L523-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 145#L523-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~the_int~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_#t~mem5#1, strrchr_#t~mem6#1, strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset, strrchr_#t~mem8#1, strrchr_#t~mem9#1, strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset, strrchr_#t~mem11#1, strrchr_#t~mem12#1, strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 146#L511-2 [2022-07-23 14:24:13,077 INFO L754 eck$LassoCheckResult]: Loop: 146#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 160#L512 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 149#L512-2 call strrchr_#t~mem3#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 147#L512-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset;call strrchr_#t~mem5#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 148#L513 assume strrchr_#t~mem5#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem5#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 161#L513-2 call strrchr_#t~mem6#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 158#L513-3 assume !(0 == strrchr_#t~mem6#1);havoc strrchr_#t~mem6#1;strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset;call strrchr_#t~mem8#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 159#L514 assume strrchr_#t~mem8#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem8#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 162#L514-2 call strrchr_#t~mem9#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 155#L514-3 assume !(0 == strrchr_#t~mem9#1);havoc strrchr_#t~mem9#1;strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset;call strrchr_#t~mem11#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 153#L515 assume strrchr_#t~mem11#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem11#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 150#L515-2 call strrchr_#t~mem12#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 151#L515-3 assume !(0 == strrchr_#t~mem12#1);havoc strrchr_#t~mem12#1;strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset; 146#L511-2 [2022-07-23 14:24:13,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:13,077 INFO L85 PathProgramCache]: Analyzing trace with hash 28695884, now seen corresponding path program 1 times [2022-07-23 14:24:13,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:13,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176385798] [2022-07-23 14:24:13,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:13,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:13,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:13,089 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:24:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:13,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:24:13,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:13,099 INFO L85 PathProgramCache]: Analyzing trace with hash 964144916, now seen corresponding path program 1 times [2022-07-23 14:24:13,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:13,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699030587] [2022-07-23 14:24:13,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:13,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:13,110 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:24:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:13,122 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:24:13,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:13,123 INFO L85 PathProgramCache]: Analyzing trace with hash 149619625, now seen corresponding path program 1 times [2022-07-23 14:24:13,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:13,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020537144] [2022-07-23 14:24:13,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:13,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:24:13,262 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 [2022-07-23 14:24:13,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:24:13,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:24:13,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020537144] [2022-07-23 14:24:13,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020537144] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:24:13,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:24:13,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 14:24:13,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54334850] [2022-07-23 14:24:13,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:24:13,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:24:13,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 14:24:13,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 14:24:13,511 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 8 Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:24:13,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:24:13,586 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2022-07-23 14:24:13,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 14:24:13,589 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2022-07-23 14:24:13,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-07-23 14:24:13,590 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 21 states and 26 transitions. [2022-07-23 14:24:13,590 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2022-07-23 14:24:13,590 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-07-23 14:24:13,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 26 transitions. [2022-07-23 14:24:13,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 14:24:13,590 INFO L369 hiAutomatonCegarLoop]: Abstraction has 21 states and 26 transitions. [2022-07-23 14:24:13,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 26 transitions. [2022-07-23 14:24:13,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2022-07-23 14:24:13,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.25) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:24:13,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2022-07-23 14:24:13,592 INFO L392 hiAutomatonCegarLoop]: Abstraction has 20 states and 25 transitions. [2022-07-23 14:24:13,592 INFO L374 stractBuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2022-07-23 14:24:13,592 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-23 14:24:13,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2022-07-23 14:24:13,592 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-07-23 14:24:13,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:24:13,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:24:13,593 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 14:24:13,593 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 14:24:13,593 INFO L752 eck$LassoCheckResult]: Stem: 204#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 205#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet17#1, main_#t~post16#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 214#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 216#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 217#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 218#L523-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 206#L523-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~the_int~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_#t~mem5#1, strrchr_#t~mem6#1, strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset, strrchr_#t~mem8#1, strrchr_#t~mem9#1, strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset, strrchr_#t~mem11#1, strrchr_#t~mem12#1, strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 207#L511-2 [2022-07-23 14:24:13,593 INFO L754 eck$LassoCheckResult]: Loop: 207#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 221#L512 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 210#L512-2 call strrchr_#t~mem3#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 208#L512-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset;call strrchr_#t~mem5#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 209#L513 assume strrchr_#t~mem5#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem5#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 222#L513-2 call strrchr_#t~mem6#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 219#L513-3 assume !(0 == strrchr_#t~mem6#1);havoc strrchr_#t~mem6#1;strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset;call strrchr_#t~mem8#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 220#L514 assume strrchr_#t~mem8#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem8#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 223#L514-2 call strrchr_#t~mem9#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 215#L514-3 assume !(0 == strrchr_#t~mem9#1);havoc strrchr_#t~mem9#1;strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset;call strrchr_#t~mem11#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 213#L515 assume strrchr_#t~mem11#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem11#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 211#L515-2 call strrchr_#t~mem12#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 212#L515-3 assume !(0 == strrchr_#t~mem12#1);havoc strrchr_#t~mem12#1;strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset; 207#L511-2 [2022-07-23 14:24:13,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:13,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1806996910, now seen corresponding path program 1 times [2022-07-23 14:24:13,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:13,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16528008] [2022-07-23 14:24:13,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:13,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:13,605 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:24:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:13,614 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:24:13,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:13,615 INFO L85 PathProgramCache]: Analyzing trace with hash 964144916, now seen corresponding path program 2 times [2022-07-23 14:24:13,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:13,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310058066] [2022-07-23 14:24:13,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:13,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:13,624 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:24:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:13,639 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:24:13,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:13,640 INFO L85 PathProgramCache]: Analyzing trace with hash 729709191, now seen corresponding path program 1 times [2022-07-23 14:24:13,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:13,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372124835] [2022-07-23 14:24:13,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:13,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:24:13,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:24:13,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:24:13,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372124835] [2022-07-23 14:24:13,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372124835] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 14:24:13,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947930698] [2022-07-23 14:24:13,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:13,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:24:13,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:13,748 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 14:24:13,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-23 14:24:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:24:13,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-23 14:24:13,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:24:13,849 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 [2022-07-23 14:24:13,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:24:13,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 14:24:13,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:24:13,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947930698] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 14:24:13,988 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 14:24:13,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 16 [2022-07-23 14:24:13,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023581195] [2022-07-23 14:24:13,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 14:24:14,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:24:14,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-23 14:24:14,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-07-23 14:24:14,175 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. cyclomatic complexity: 7 Second operand has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:24:14,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:24:14,300 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2022-07-23 14:24:14,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 14:24:14,301 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2022-07-23 14:24:14,303 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-07-23 14:24:14,306 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 23 states and 28 transitions. [2022-07-23 14:24:14,307 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2022-07-23 14:24:14,307 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-07-23 14:24:14,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 28 transitions. [2022-07-23 14:24:14,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 14:24:14,307 INFO L369 hiAutomatonCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-07-23 14:24:14,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 28 transitions. [2022-07-23 14:24:14,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2022-07-23 14:24:14,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:24:14,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2022-07-23 14:24:14,310 INFO L392 hiAutomatonCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-07-23 14:24:14,310 INFO L374 stractBuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-07-23 14:24:14,310 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-23 14:24:14,310 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2022-07-23 14:24:14,310 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-07-23 14:24:14,310 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:24:14,311 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:24:14,311 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-23 14:24:14,311 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 14:24:14,311 INFO L752 eck$LassoCheckResult]: Stem: 396#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 397#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet17#1, main_#t~post16#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 405#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 408#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 409#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 410#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 411#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 417#L523-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 398#L523-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~the_int~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_#t~mem5#1, strrchr_#t~mem6#1, strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset, strrchr_#t~mem8#1, strrchr_#t~mem9#1, strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset, strrchr_#t~mem11#1, strrchr_#t~mem12#1, strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 399#L511-2 [2022-07-23 14:24:14,311 INFO L754 eck$LassoCheckResult]: Loop: 399#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 414#L512 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 402#L512-2 call strrchr_#t~mem3#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 400#L512-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset;call strrchr_#t~mem5#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 401#L513 assume strrchr_#t~mem5#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem5#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 415#L513-2 call strrchr_#t~mem6#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 412#L513-3 assume !(0 == strrchr_#t~mem6#1);havoc strrchr_#t~mem6#1;strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset;call strrchr_#t~mem8#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 413#L514 assume strrchr_#t~mem8#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem8#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 416#L514-2 call strrchr_#t~mem9#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 407#L514-3 assume !(0 == strrchr_#t~mem9#1);havoc strrchr_#t~mem9#1;strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset;call strrchr_#t~mem11#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 406#L515 assume strrchr_#t~mem11#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem11#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 403#L515-2 call strrchr_#t~mem12#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 404#L515-3 assume !(0 == strrchr_#t~mem12#1);havoc strrchr_#t~mem12#1;strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset; 399#L511-2 [2022-07-23 14:24:14,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:14,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1357299088, now seen corresponding path program 2 times [2022-07-23 14:24:14,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:14,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937228629] [2022-07-23 14:24:14,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:14,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:14,322 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:24:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:14,331 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:24:14,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:14,332 INFO L85 PathProgramCache]: Analyzing trace with hash 964144916, now seen corresponding path program 3 times [2022-07-23 14:24:14,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:14,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459206409] [2022-07-23 14:24:14,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:14,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:14,339 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:24:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:14,345 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:24:14,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:14,346 INFO L85 PathProgramCache]: Analyzing trace with hash -149966363, now seen corresponding path program 2 times [2022-07-23 14:24:14,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:14,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150453647] [2022-07-23 14:24:14,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:14,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:24:14,450 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:24:14,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:24:14,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150453647] [2022-07-23 14:24:14,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150453647] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 14:24:14,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653184542] [2022-07-23 14:24:14,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 14:24:14,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:24:14,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:14,462 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 14:24:14,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-23 14:24:14,555 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-23 14:24:14,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 14:24:14,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 27 conjunts are in the unsatisfiable core [2022-07-23 14:24:14,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:24:14,578 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 [2022-07-23 14:24:14,680 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:24:14,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 14:24:14,763 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:24:14,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653184542] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 14:24:14,764 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 14:24:14,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 21 [2022-07-23 14:24:14,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451206302] [2022-07-23 14:24:14,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 14:24:14,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:24:14,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-23 14:24:14,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2022-07-23 14:24:14,945 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. cyclomatic complexity: 7 Second operand has 21 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 21 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:24:15,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:24:15,096 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2022-07-23 14:24:15,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 14:24:15,097 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 44 transitions. [2022-07-23 14:24:15,098 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-07-23 14:24:15,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 25 states and 30 transitions. [2022-07-23 14:24:15,098 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2022-07-23 14:24:15,098 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-07-23 14:24:15,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 30 transitions. [2022-07-23 14:24:15,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 14:24:15,098 INFO L369 hiAutomatonCegarLoop]: Abstraction has 25 states and 30 transitions. [2022-07-23 14:24:15,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 30 transitions. [2022-07-23 14:24:15,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2022-07-23 14:24:15,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:24:15,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-07-23 14:24:15,100 INFO L392 hiAutomatonCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-07-23 14:24:15,100 INFO L374 stractBuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-07-23 14:24:15,100 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-23 14:24:15,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2022-07-23 14:24:15,100 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-07-23 14:24:15,100 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:24:15,100 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:24:15,101 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1, 1] [2022-07-23 14:24:15,101 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 14:24:15,101 INFO L752 eck$LassoCheckResult]: Stem: 616#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 617#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet17#1, main_#t~post16#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 624#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 625#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 626#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 635#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 637#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 627#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 628#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 636#L523-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 614#L523-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~the_int~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_#t~mem5#1, strrchr_#t~mem6#1, strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset, strrchr_#t~mem8#1, strrchr_#t~mem9#1, strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset, strrchr_#t~mem11#1, strrchr_#t~mem12#1, strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 615#L511-2 [2022-07-23 14:24:15,101 INFO L754 eck$LassoCheckResult]: Loop: 615#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 632#L512 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 620#L512-2 call strrchr_#t~mem3#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 618#L512-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset;call strrchr_#t~mem5#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 619#L513 assume strrchr_#t~mem5#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem5#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 633#L513-2 call strrchr_#t~mem6#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 630#L513-3 assume !(0 == strrchr_#t~mem6#1);havoc strrchr_#t~mem6#1;strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset;call strrchr_#t~mem8#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 631#L514 assume strrchr_#t~mem8#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem8#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 634#L514-2 call strrchr_#t~mem9#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 629#L514-3 assume !(0 == strrchr_#t~mem9#1);havoc strrchr_#t~mem9#1;strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset;call strrchr_#t~mem11#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 623#L515 assume strrchr_#t~mem11#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem11#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 621#L515-2 call strrchr_#t~mem12#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 622#L515-3 assume !(0 == strrchr_#t~mem12#1);havoc strrchr_#t~mem12#1;strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset; 615#L511-2 [2022-07-23 14:24:15,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:15,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1305578254, now seen corresponding path program 3 times [2022-07-23 14:24:15,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:15,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889124023] [2022-07-23 14:24:15,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:15,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:15,119 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:24:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:15,126 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:24:15,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:15,126 INFO L85 PathProgramCache]: Analyzing trace with hash 964144916, now seen corresponding path program 4 times [2022-07-23 14:24:15,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:15,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775862408] [2022-07-23 14:24:15,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:15,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:15,132 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:24:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:15,137 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:24:15,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:15,137 INFO L85 PathProgramCache]: Analyzing trace with hash 590383555, now seen corresponding path program 3 times [2022-07-23 14:24:15,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:15,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569923894] [2022-07-23 14:24:15,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:15,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:24:15,300 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:24:15,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:24:15,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569923894] [2022-07-23 14:24:15,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569923894] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 14:24:15,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737586619] [2022-07-23 14:24:15,301 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-23 14:24:15,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:24:15,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:15,303 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 14:24:15,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-23 14:24:15,356 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-07-23 14:24:15,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 14:24:15,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 43 conjunts are in the unsatisfiable core [2022-07-23 14:24:15,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:24:15,367 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 [2022-07-23 14:24:15,475 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2022-07-23 14:24:15,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-23 14:24:15,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-23 14:24:15,790 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-23 14:24:15,791 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 14 [2022-07-23 14:24:15,810 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:24:15,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 14:24:16,084 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-07-23 14:24:16,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-23 14:24:16,089 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 77 [2022-07-23 14:24:16,426 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:24:16,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737586619] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 14:24:16,427 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 14:24:16,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14] total 38 [2022-07-23 14:24:16,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291850235] [2022-07-23 14:24:16,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 14:24:16,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:24:16,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-07-23 14:24:16,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1265, Unknown=0, NotChecked=0, Total=1406 [2022-07-23 14:24:16,628 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. cyclomatic complexity: 7 Second operand has 38 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 38 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:24:17,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:24:17,040 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2022-07-23 14:24:17,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-23 14:24:17,041 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 48 transitions. [2022-07-23 14:24:17,041 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-07-23 14:24:17,041 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 48 transitions. [2022-07-23 14:24:17,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2022-07-23 14:24:17,042 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2022-07-23 14:24:17,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 48 transitions. [2022-07-23 14:24:17,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 14:24:17,042 INFO L369 hiAutomatonCegarLoop]: Abstraction has 39 states and 48 transitions. [2022-07-23 14:24:17,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 48 transitions. [2022-07-23 14:24:17,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2022-07-23 14:24:17,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.236842105263158) internal successors, (47), 37 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:24:17,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2022-07-23 14:24:17,044 INFO L392 hiAutomatonCegarLoop]: Abstraction has 38 states and 47 transitions. [2022-07-23 14:24:17,044 INFO L374 stractBuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2022-07-23 14:24:17,044 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-23 14:24:17,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 47 transitions. [2022-07-23 14:24:17,044 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-07-23 14:24:17,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:24:17,044 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:24:17,044 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 14:24:17,044 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 14:24:17,045 INFO L752 eck$LassoCheckResult]: Stem: 884#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 885#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet17#1, main_#t~post16#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 893#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 894#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 895#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 896#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 897#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 919#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 917#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 915#L523-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 882#L523-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~the_int~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_#t~mem5#1, strrchr_#t~mem6#1, strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset, strrchr_#t~mem8#1, strrchr_#t~mem9#1, strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset, strrchr_#t~mem11#1, strrchr_#t~mem12#1, strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 883#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 901#L512 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 888#L512-2 [2022-07-23 14:24:17,045 INFO L754 eck$LassoCheckResult]: Loop: 888#L512-2 call strrchr_#t~mem3#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 886#L512-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset;call strrchr_#t~mem5#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 887#L513 assume strrchr_#t~mem5#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem5#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 905#L513-2 call strrchr_#t~mem6#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 910#L513-3 assume !(0 == strrchr_#t~mem6#1);havoc strrchr_#t~mem6#1;strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset;call strrchr_#t~mem8#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 909#L514 assume strrchr_#t~mem8#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem8#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 904#L514-2 call strrchr_#t~mem9#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 908#L514-3 assume !(0 == strrchr_#t~mem9#1);havoc strrchr_#t~mem9#1;strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset;call strrchr_#t~mem11#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 907#L515 assume strrchr_#t~mem11#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem11#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 889#L515-2 call strrchr_#t~mem12#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 890#L515-3 assume !(0 == strrchr_#t~mem12#1);havoc strrchr_#t~mem12#1;strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset; 891#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 906#L512 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 888#L512-2 [2022-07-23 14:24:17,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:17,045 INFO L85 PathProgramCache]: Analyzing trace with hash -530250729, now seen corresponding path program 1 times [2022-07-23 14:24:17,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:17,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233122840] [2022-07-23 14:24:17,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:17,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:17,077 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:24:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:17,085 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:24:17,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:17,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1358949434, now seen corresponding path program 5 times [2022-07-23 14:24:17,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:17,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140168036] [2022-07-23 14:24:17,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:17,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:17,089 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:24:17,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:17,094 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:24:17,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:17,094 INFO L85 PathProgramCache]: Analyzing trace with hash -588203036, now seen corresponding path program 1 times [2022-07-23 14:24:17,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:17,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397321644] [2022-07-23 14:24:17,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:17,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:24:17,179 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:24:17,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:24:17,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397321644] [2022-07-23 14:24:17,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397321644] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 14:24:17,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536235148] [2022-07-23 14:24:17,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:17,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:24:17,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:17,180 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 14:24:17,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-23 14:24:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:24:17,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 27 conjunts are in the unsatisfiable core [2022-07-23 14:24:17,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:24:17,236 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 [2022-07-23 14:24:17,411 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:24:17,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 14:24:17,528 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:24:17,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536235148] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 14:24:17,528 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 14:24:17,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 28 [2022-07-23 14:24:17,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772933383] [2022-07-23 14:24:17,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 14:24:17,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:24:17,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-07-23 14:24:17,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2022-07-23 14:24:17,722 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. cyclomatic complexity: 11 Second operand has 28 states, 28 states have (on average 2.1785714285714284) internal successors, (61), 28 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:24:18,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:24:18,022 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2022-07-23 14:24:18,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 14:24:18,023 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 62 transitions. [2022-07-23 14:24:18,023 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-07-23 14:24:18,023 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 27 states and 32 transitions. [2022-07-23 14:24:18,023 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2022-07-23 14:24:18,023 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-07-23 14:24:18,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 32 transitions. [2022-07-23 14:24:18,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 14:24:18,024 INFO L369 hiAutomatonCegarLoop]: Abstraction has 27 states and 32 transitions. [2022-07-23 14:24:18,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 32 transitions. [2022-07-23 14:24:18,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2022-07-23 14:24:18,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:24:18,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-07-23 14:24:18,025 INFO L392 hiAutomatonCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-07-23 14:24:18,025 INFO L374 stractBuchiCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-07-23 14:24:18,025 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-23 14:24:18,025 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 31 transitions. [2022-07-23 14:24:18,025 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-07-23 14:24:18,025 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:24:18,025 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:24:18,026 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1, 1] [2022-07-23 14:24:18,026 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 14:24:18,026 INFO L752 eck$LassoCheckResult]: Stem: 1172#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1173#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet17#1, main_#t~post16#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 1182#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 1184#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 1185#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1186#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 1187#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1193#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 1197#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1196#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 1195#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1194#L523-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 1174#L523-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~the_int~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_#t~mem5#1, strrchr_#t~mem6#1, strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset, strrchr_#t~mem8#1, strrchr_#t~mem9#1, strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset, strrchr_#t~mem11#1, strrchr_#t~mem12#1, strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 1175#L511-2 [2022-07-23 14:24:18,026 INFO L754 eck$LassoCheckResult]: Loop: 1175#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1190#L512 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1178#L512-2 call strrchr_#t~mem3#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1176#L512-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset;call strrchr_#t~mem5#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1177#L513 assume strrchr_#t~mem5#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem5#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1192#L513-2 call strrchr_#t~mem6#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1188#L513-3 assume !(0 == strrchr_#t~mem6#1);havoc strrchr_#t~mem6#1;strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset;call strrchr_#t~mem8#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1189#L514 assume strrchr_#t~mem8#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem8#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1191#L514-2 call strrchr_#t~mem9#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1183#L514-3 assume !(0 == strrchr_#t~mem9#1);havoc strrchr_#t~mem9#1;strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset;call strrchr_#t~mem11#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1181#L515 assume strrchr_#t~mem11#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem11#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1179#L515-2 call strrchr_#t~mem12#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1180#L515-3 assume !(0 == strrchr_#t~mem12#1);havoc strrchr_#t~mem12#1;strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset; 1175#L511-2 [2022-07-23 14:24:18,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:18,027 INFO L85 PathProgramCache]: Analyzing trace with hash -530195500, now seen corresponding path program 4 times [2022-07-23 14:24:18,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:18,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667652528] [2022-07-23 14:24:18,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:18,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:18,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:18,045 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:24:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:18,051 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:24:18,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:18,051 INFO L85 PathProgramCache]: Analyzing trace with hash 964144916, now seen corresponding path program 6 times [2022-07-23 14:24:18,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:18,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664938858] [2022-07-23 14:24:18,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:18,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:18,056 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:24:18,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:18,067 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:24:18,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:18,067 INFO L85 PathProgramCache]: Analyzing trace with hash -897916383, now seen corresponding path program 4 times [2022-07-23 14:24:18,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:24:18,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43480234] [2022-07-23 14:24:18,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:24:18,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:24:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:18,084 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:24:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:24:18,097 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:24:19,061 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:24:19,062 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:24:19,062 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:24:19,062 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:24:19,062 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:24:19,062 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:19,062 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:24:19,062 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:24:19,062 INFO L133 ssoRankerPreferences]: Filename of dumped script: strrchr.i_Iteration7_Lasso [2022-07-23 14:24:19,062 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:24:19,062 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:24:19,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:19,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:24:20,010 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:24:20,010 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:24:20,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,019 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) [2022-07-23 14:24:20,019 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 [2022-07-23 14:24:20,020 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,027 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,028 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,047 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 [2022-07-23 14:24:20,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,048 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) [2022-07-23 14:24:20,049 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 [2022-07-23 14:24:20,051 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,056 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,057 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,058 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,074 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 [2022-07-23 14:24:20,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,075 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) [2022-07-23 14:24:20,077 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 [2022-07-23 14:24:20,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,083 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,100 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 [2022-07-23 14:24:20,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,101 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) [2022-07-23 14:24:20,103 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,109 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,113 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 [2022-07-23 14:24:20,121 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-07-23 14:24:20,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,137 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) [2022-07-23 14:24:20,139 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 [2022-07-23 14:24:20,140 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,146 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:24:20,146 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:24:20,177 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-07-23 14:24:20,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,194 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) [2022-07-23 14:24:20,195 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 [2022-07-23 14:24:20,196 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,201 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,202 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,217 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-07-23 14:24:20,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,234 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) [2022-07-23 14:24:20,235 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 [2022-07-23 14:24:20,236 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,257 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-07-23 14:24:20,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,273 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) [2022-07-23 14:24:20,274 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 [2022-07-23 14:24:20,275 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,280 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,281 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,296 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,311 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 [2022-07-23 14:24:20,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,312 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) [2022-07-23 14:24:20,313 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 [2022-07-23 14:24:20,314 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,319 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,320 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,320 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,328 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-07-23 14:24:20,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,345 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) [2022-07-23 14:24:20,345 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 [2022-07-23 14:24:20,346 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,353 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,368 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,384 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 [2022-07-23 14:24:20,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,385 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:24:20,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-07-23 14:24:20,387 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 [2022-07-23 14:24:20,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,392 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,393 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,393 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,408 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-07-23 14:24:20,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,431 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) [2022-07-23 14:24:20,432 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 [2022-07-23 14:24:20,433 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,438 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,438 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,454 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-07-23 14:24:20,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,470 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) [2022-07-23 14:24:20,471 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 [2022-07-23 14:24:20,472 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,478 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,478 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,493 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-07-23 14:24:20,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,510 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) [2022-07-23 14:24:20,511 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 [2022-07-23 14:24:20,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,518 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,521 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,536 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 [2022-07-23 14:24:20,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,537 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) [2022-07-23 14:24:20,538 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 [2022-07-23 14:24:20,539 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,545 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:24:20,545 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:24:20,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,562 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 [2022-07-23 14:24:20,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,564 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) [2022-07-23 14:24:20,566 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 [2022-07-23 14:24:20,567 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,573 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,582 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,599 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 [2022-07-23 14:24:20,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,600 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) [2022-07-23 14:24:20,601 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 [2022-07-23 14:24:20,602 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,608 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,609 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,609 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,610 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,626 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 [2022-07-23 14:24:20,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,627 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) [2022-07-23 14:24:20,628 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 [2022-07-23 14:24:20,630 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,636 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,636 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,637 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,652 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 [2022-07-23 14:24:20,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,653 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) [2022-07-23 14:24:20,654 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 [2022-07-23 14:24:20,655 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,660 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,661 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,661 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,676 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2022-07-23 14:24:20,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,693 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) [2022-07-23 14:24:20,694 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 [2022-07-23 14:24:20,695 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,716 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,731 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2022-07-23 14:24:20,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,733 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) [2022-07-23 14:24:20,733 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 [2022-07-23 14:24:20,735 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,740 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,756 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2022-07-23 14:24:20,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,772 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) [2022-07-23 14:24:20,773 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 [2022-07-23 14:24:20,774 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,780 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,780 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,788 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,805 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 [2022-07-23 14:24:20,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,806 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:24:20,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-07-23 14:24:20,808 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,814 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,814 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,830 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,845 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-07-23 14:24:20,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,846 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:24:20,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-07-23 14:24:20,848 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,853 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,854 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,854 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,867 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2022-07-23 14:24:20,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,883 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:24:20,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-07-23 14:24:20,886 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,891 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:24:20,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,892 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:24:20,892 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:24:20,893 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2022-07-23 14:24:20,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,910 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:24:20,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-07-23 14:24:20,912 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,917 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,919 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:24:20,919 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:24:20,928 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-07-23 14:24:20,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,944 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:24:20,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-07-23 14:24:20,946 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:20,955 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:24:20,955 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:24:20,971 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:24:20,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-07-23 14:24:20,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:20,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:20,988 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:24:20,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-07-23 14:24:20,990 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:24:20,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:24:20,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:24:20,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:24:20,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:24:21,001 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:24:21,001 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:24:21,014 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:24:21,028 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2022-07-23 14:24:21,028 INFO L444 ModelExtractionUtils]: 11 out of 34 variables were initially zero. Simplification set additionally 20 variables to zero. [2022-07-23 14:24:21,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:24:21,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:24:21,030 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:24:21,052 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:24:21,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-07-23 14:24:21,070 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-23 14:24:21,070 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:24:21,070 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strrchr_~t#1.offset, v_rep(select #length ULTIMATE.start_main_~in~0#1.base)_2) = -1*ULTIMATE.start_strrchr_~t#1.offset + 2*v_rep(select #length ULTIMATE.start_main_~in~0#1.base)_2 Supporting invariants [] [2022-07-23 14:24:21,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-07-23 14:24:21,129 INFO L293 tatePredicateManager]: 18 out of 20 supporting invariants were superfluous and have been removed [2022-07-23 14:24:21,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:24:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:24:21,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-23 14:24:21,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:24:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:24:21,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-23 14:24:21,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:24:21,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:24:21,383 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2022-07-23 14:24:21,383 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 31 transitions. cyclomatic complexity: 7 Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:24:21,439 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 31 transitions. cyclomatic complexity: 7. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40 states and 52 transitions. Complement of second has 9 states. [2022-07-23 14:24:21,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-23 14:24:21,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:24:21,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 28 transitions. [2022-07-23 14:24:21,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 13 letters. Loop has 13 letters. [2022-07-23 14:24:21,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:24:21,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 26 letters. Loop has 13 letters. [2022-07-23 14:24:21,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:24:21,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 13 letters. Loop has 26 letters. [2022-07-23 14:24:21,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:24:21,441 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 52 transitions. [2022-07-23 14:24:21,442 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-23 14:24:21,442 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 0 states and 0 transitions. [2022-07-23 14:24:21,442 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-23 14:24:21,442 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-23 14:24:21,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-23 14:24:21,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 14:24:21,442 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 14:24:21,442 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 14:24:21,442 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 14:24:21,442 INFO L287 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-07-23 14:24:21,442 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-23 14:24:21,442 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-23 14:24:21,442 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-23 14:24:21,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 02:24:21 BoogieIcfgContainer [2022-07-23 14:24:21,447 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 14:24:21,448 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 14:24:21,448 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 14:24:21,448 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 14:24:21,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:24:11" (3/4) ... [2022-07-23 14:24:21,459 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-23 14:24:21,459 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 14:24:21,460 INFO L158 Benchmark]: Toolchain (without parser) took 10993.71ms. Allocated memory was 104.9MB in the beginning and 220.2MB in the end (delta: 115.3MB). Free memory was 74.7MB in the beginning and 141.7MB in the end (delta: -67.1MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. [2022-07-23 14:24:21,460 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:24:21,460 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.60ms. Allocated memory is still 104.9MB. Free memory was 74.4MB in the beginning and 73.3MB in the end (delta: 1.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-07-23 14:24:21,460 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.90ms. Allocated memory is still 104.9MB. Free memory was 73.3MB in the beginning and 71.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 14:24:21,461 INFO L158 Benchmark]: Boogie Preprocessor took 20.66ms. Allocated memory is still 104.9MB. Free memory was 71.2MB in the beginning and 69.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:24:21,461 INFO L158 Benchmark]: RCFGBuilder took 401.48ms. Allocated memory is still 104.9MB. Free memory was 69.9MB in the beginning and 57.8MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-23 14:24:21,461 INFO L158 Benchmark]: BuchiAutomizer took 10221.73ms. Allocated memory was 104.9MB in the beginning and 220.2MB in the end (delta: 115.3MB). Free memory was 57.8MB in the beginning and 142.8MB in the end (delta: -85.0MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2022-07-23 14:24:21,461 INFO L158 Benchmark]: Witness Printer took 11.50ms. Allocated memory is still 220.2MB. Free memory was 142.8MB in the beginning and 141.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:24:21,462 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.60ms. Allocated memory is still 104.9MB. Free memory was 74.4MB in the beginning and 73.3MB in the end (delta: 1.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.90ms. Allocated memory is still 104.9MB. Free memory was 73.3MB in the beginning and 71.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.66ms. Allocated memory is still 104.9MB. Free memory was 71.2MB in the beginning and 69.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 401.48ms. Allocated memory is still 104.9MB. Free memory was 69.9MB in the beginning and 57.8MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 10221.73ms. Allocated memory was 104.9MB in the beginning and 220.2MB in the end (delta: 115.3MB). Free memory was 57.8MB in the beginning and 142.8MB in the end (delta: -85.0MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. * Witness Printer took 11.50ms. Allocated memory is still 220.2MB. Free memory was 142.8MB in the beginning and 141.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (5 trivial, 2 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 * unknown-#length-unknown[in] + -1 * t and consists of 6 locations. 5 modules have a trivial ranking function, the largest among these consists of 38 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.1s and 8 iterations. TraceHistogramMax:4. Analysis of lassos took 8.5s. Construction of modules took 0.4s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 7. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 279 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 278 mSDsluCounter, 540 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 64 IncrementalHoareTripleChecker+Unchecked, 446 mSDsCounter, 86 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 969 IncrementalHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 86 mSolverCounterUnsat, 94 mSDtfsCounter, 969 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc5 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital158 mio100 ax100 hnf100 lsp98 ukn82 mio100 lsp47 div125 bol100 ite100 ukn100 eq171 hnf91 smp88 dnf165 smp85 tf100 neg98 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 1 VariablesLoop: 0 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! [2022-07-23 14:24:21,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2022-07-23 14:24:21,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-23 14:24:21,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-23 14:24:22,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-23 14:24:22,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-23 14:24:22,509 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