./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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/array-industry-pattern/array_shadowinit.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 347059d6406aa1ba26314e4f378fb38f7ea56c61 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 14:36:08,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 14:36:08,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 14:36:08,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 14:36:08,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 14:36:08,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 14:36:08,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 14:36:08,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 14:36:08,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 14:36:08,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 14:36:08,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 14:36:08,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 14:36:08,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 14:36:08,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 14:36:08,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 14:36:08,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 14:36:08,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 14:36:08,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 14:36:08,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 14:36:08,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 14:36:08,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 14:36:08,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 14:36:08,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 14:36:08,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 14:36:08,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 14:36:08,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 14:36:08,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 14:36:08,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 14:36:08,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 14:36:08,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 14:36:08,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 14:36:08,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 14:36:08,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 14:36:08,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 14:36:08,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 14:36:08,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 14:36:08,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 14:36:08,804 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 14:36:08,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 14:36:08,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 14:36:08,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 14:36:08,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 14:36:08,841 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 14:36:08,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 14:36:08,841 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 14:36:08,842 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 14:36:08,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 14:36:08,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 14:36:08,843 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 14:36:08,843 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 14:36:08,843 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 14:36:08,844 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 14:36:08,844 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 14:36:08,844 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 14:36:08,844 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 14:36:08,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 14:36:08,844 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 14:36:08,845 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 14:36:08,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 14:36:08,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 14:36:08,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 14:36:08,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 14:36:08,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 14:36:08,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 14:36:08,851 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 14:36:08,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 14:36:08,851 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 14:36:08,851 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 14:36:08,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 14:36:08,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 14:36:08,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 14:36:08,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 14:36:08,852 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 14:36:08,852 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 14:36:08,853 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 14:36:08,854 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 347059d6406aa1ba26314e4f378fb38f7ea56c61 [2021-08-27 14:36:09,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 14:36:09,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 14:36:09,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 14:36:09,198 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 14:36:09,198 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 14:36:09,199 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i [2021-08-27 14:36:09,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c05381d4/8d644437164148a8833953c5e3243d16/FLAGb229f756a [2021-08-27 14:36:09,618 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 14:36:09,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/array_shadowinit.i [2021-08-27 14:36:09,629 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c05381d4/8d644437164148a8833953c5e3243d16/FLAGb229f756a [2021-08-27 14:36:10,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c05381d4/8d644437164148a8833953c5e3243d16 [2021-08-27 14:36:10,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 14:36:10,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 14:36:10,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 14:36:10,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 14:36:10,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 14:36:10,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:36:10" (1/1) ... [2021-08-27 14:36:10,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a1bb1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:36:10, skipping insertion in model container [2021-08-27 14:36:10,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:36:10" (1/1) ... [2021-08-27 14:36:10,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 14:36:10,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 14:36:10,178 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/array_shadowinit.i[809,822] [2021-08-27 14:36:10,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:36:10,194 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 14:36:10,204 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/array_shadowinit.i[809,822] [2021-08-27 14:36:10,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:36:10,219 INFO L208 MainTranslator]: Completed translation [2021-08-27 14:36:10,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:36:10 WrapperNode [2021-08-27 14:36:10,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 14:36:10,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 14:36:10,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 14:36:10,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 14:36:10,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:36:10" (1/1) ... [2021-08-27 14:36:10,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:36:10" (1/1) ... [2021-08-27 14:36:10,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 14:36:10,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 14:36:10,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 14:36:10,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 14:36:10,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:36:10" (1/1) ... [2021-08-27 14:36:10,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:36:10" (1/1) ... [2021-08-27 14:36:10,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:36:10" (1/1) ... [2021-08-27 14:36:10,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:36:10" (1/1) ... [2021-08-27 14:36:10,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:36:10" (1/1) ... [2021-08-27 14:36:10,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:36:10" (1/1) ... [2021-08-27 14:36:10,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:36:10" (1/1) ... [2021-08-27 14:36:10,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 14:36:10,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 14:36:10,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 14:36:10,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 14:36:10,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:36:10" (1/1) ... [2021-08-27 14:36:10,331 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:10,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:10,358 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) [2021-08-27 14:36:10,378 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 [2021-08-27 14:36:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 14:36:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 14:36:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 14:36:10,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 14:36:10,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 14:36:10,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-27 14:36:10,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 14:36:10,659 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 14:36:10,667 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-27 14:36:10,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:36:10 BoogieIcfgContainer [2021-08-27 14:36:10,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 14:36:10,670 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 14:36:10,670 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 14:36:10,678 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 14:36:10,679 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:36:10,679 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 02:36:10" (1/3) ... [2021-08-27 14:36:10,680 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61410c47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:36:10, skipping insertion in model container [2021-08-27 14:36:10,680 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:36:10,680 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:36:10" (2/3) ... [2021-08-27 14:36:10,681 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61410c47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:36:10, skipping insertion in model container [2021-08-27 14:36:10,681 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:36:10,681 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:36:10" (3/3) ... [2021-08-27 14:36:10,682 INFO L389 chiAutomizerObserver]: Analyzing ICFG array_shadowinit.i [2021-08-27 14:36:10,725 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 14:36:10,726 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 14:36:10,726 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 14:36:10,726 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 14:36:10,726 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 14:36:10,726 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 14:36:10,726 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 14:36:10,726 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 14:36:10,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:36:10,752 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-08-27 14:36:10,752 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:36:10,753 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:36:10,757 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-08-27 14:36:10,757 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 14:36:10,758 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 14:36:10,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:36:10,759 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-08-27 14:36:10,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:36:10,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:36:10,760 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-08-27 14:36:10,760 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 14:36:10,766 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(19);~N~0 := 0; 6#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~mem4, main_~i~0, main_~k~0, main_~#a~0.base, main_~#a~0.offset;~N~0 := main_#t~nondet3;havoc main_#t~nondet3; 7#L18true assume ~N~0 > 0;havoc main_~i~0;havoc main_~k~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0 := 0;main_~k~0 := 0; 12#L23-2true [2021-08-27 14:36:10,766 INFO L793 eck$LassoCheckResult]: Loop: 12#L23-2true assume !!(main_~i~0 < ~N~0);call write~int(main_~k~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~k~0, 4);main_~i~0 := 1 + main_~i~0;main_~k~0 := 1 + main_~k~0; 12#L23-2true [2021-08-27 14:36:10,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:36:10,772 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-08-27 14:36:10,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:36:10,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028715543] [2021-08-27 14:36:10,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:36:10,781 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:36:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:10,859 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:36:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:10,908 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:36:10,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:36:10,911 INFO L82 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 1 times [2021-08-27 14:36:10,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:36:10,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52099699] [2021-08-27 14:36:10,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:36:10,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:36:10,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:10,934 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:36:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:10,950 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:36:10,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:36:10,962 INFO L82 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2021-08-27 14:36:10,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:36:10,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23978162] [2021-08-27 14:36:10,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:36:10,963 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:36:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:10,990 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:36:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:11,007 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:36:11,753 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:36:11,753 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:36:11,754 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:36:11,754 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:36:11,754 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:36:11,754 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:11,754 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:36:11,754 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:36:11,754 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_shadowinit.i_Iteration1_Lasso [2021-08-27 14:36:11,755 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:36:11,755 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:36:11,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:12,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:12,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:12,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:12,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:12,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:12,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:12,370 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:36:12,373 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:36:12,375 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,381 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) [2021-08-27 14:36:12,384 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 [2021-08-27 14:36:12,387 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 [2021-08-27 14:36:12,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,399 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:36:12,399 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:36:12,416 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-08-27 14:36:12,436 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,438 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) [2021-08-27 14:36:12,442 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 [2021-08-27 14:36:12,445 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 [2021-08-27 14:36:12,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,459 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:36:12,460 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:36:12,474 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,491 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 [2021-08-27 14:36:12,491 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,497 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) [2021-08-27 14:36:12,505 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 [2021-08-27 14:36:12,540 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 [2021-08-27 14:36:12,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,551 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:36:12,551 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:36:12,568 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,592 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 [2021-08-27 14:36:12,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,597 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) [2021-08-27 14:36:12,609 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 [2021-08-27 14:36:12,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,624 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:36:12,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:36:12,625 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 [2021-08-27 14:36:12,640 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-08-27 14:36:12,659 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,660 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) [2021-08-27 14:36:12,662 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 [2021-08-27 14:36:12,664 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 [2021-08-27 14:36:12,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,674 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:36:12,674 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:36:12,688 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-08-27 14:36:12,705 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,706 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) [2021-08-27 14:36:12,707 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 [2021-08-27 14:36:12,708 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 [2021-08-27 14:36:12,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:12,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,716 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:12,717 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:12,732 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,764 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 [2021-08-27 14:36:12,764 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,765 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) [2021-08-27 14:36:12,766 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 [2021-08-27 14:36:12,768 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 [2021-08-27 14:36:12,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,778 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:36:12,778 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:36:12,793 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-08-27 14:36:12,819 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,820 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) [2021-08-27 14:36:12,822 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 [2021-08-27 14:36:12,823 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 [2021-08-27 14:36:12,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,834 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:36:12,834 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:36:12,840 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-08-27 14:36:12,857 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,858 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) [2021-08-27 14:36:12,859 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 [2021-08-27 14:36:12,860 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 [2021-08-27 14:36:12,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,868 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:36:12,868 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:36:12,896 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,923 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 [2021-08-27 14:36:12,924 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,925 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) [2021-08-27 14:36:12,939 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 [2021-08-27 14:36:12,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,948 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:36:12,948 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:36:12,951 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 [2021-08-27 14:36:12,964 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,990 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 [2021-08-27 14:36:12,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,993 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) [2021-08-27 14:36:12,994 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 [2021-08-27 14:36:12,996 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 [2021-08-27 14:36:13,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:13,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:13,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:13,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:13,007 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:36:13,008 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:36:13,023 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:13,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-08-27 14:36:13,047 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:13,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:13,049 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) [2021-08-27 14:36:13,050 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 [2021-08-27 14:36:13,051 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 [2021-08-27 14:36:13,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:13,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:13,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:13,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:13,070 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:36:13,070 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:36:13,087 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:36:13,159 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-08-27 14:36:13,159 INFO L444 ModelExtractionUtils]: 5 out of 19 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-08-27 14:36:13,161 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:13,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:13,177 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) [2021-08-27 14:36:13,244 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 [2021-08-27 14:36:13,246 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:36:13,271 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-08-27 14:36:13,271 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:36:13,272 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, v_rep(select #length ULTIMATE.start_main_~#a~0.base)_1) = -4*ULTIMATE.start_main_~k~0 + 1*v_rep(select #length ULTIMATE.start_main_~#a~0.base)_1 Supporting invariants [1*ULTIMATE.start_main_~#a~0.offset >= 0] [2021-08-27 14:36:13,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-08-27 14:36:13,320 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2021-08-27 14:36:13,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:36:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:36:13,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 14:36:13,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:36:13,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-08-27 14:36:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:36:13,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 14:36:13,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:36:13,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:36:13,493 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-08-27 14:36:13,494 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-08-27 14:36:13,553 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 35 states and 45 transitions. Complement of second has 6 states. [2021-08-27 14:36:13,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 14:36:13,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-08-27 14:36:13,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2021-08-27 14:36:13,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 3 letters. Loop has 1 letters. [2021-08-27 14:36:13,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:36:13,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 4 letters. Loop has 1 letters. [2021-08-27 14:36:13,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:36:13,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 3 letters. Loop has 2 letters. [2021-08-27 14:36:13,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:36:13,559 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 45 transitions. [2021-08-27 14:36:13,562 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-27 14:36:13,564 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 9 states and 11 transitions. [2021-08-27 14:36:13,565 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-08-27 14:36:13,565 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-08-27 14:36:13,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2021-08-27 14:36:13,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:36:13,565 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-08-27 14:36:13,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2021-08-27 14:36:13,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-08-27 14:36:13,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:36:13,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2021-08-27 14:36:13,581 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-08-27 14:36:13,581 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-08-27 14:36:13,581 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 14:36:13,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2021-08-27 14:36:13,582 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-27 14:36:13,582 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:36:13,582 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:36:13,582 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-08-27 14:36:13,582 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 14:36:13,582 INFO L791 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(19);~N~0 := 0; 127#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~mem4, main_~i~0, main_~k~0, main_~#a~0.base, main_~#a~0.offset;~N~0 := main_#t~nondet3;havoc main_#t~nondet3; 122#L18 assume ~N~0 > 0;havoc main_~i~0;havoc main_~k~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0 := 0;main_~k~0 := 0; 123#L23-2 assume !(main_~i~0 < ~N~0); 128#L23-3 main_~i~0 := 0; 130#L29-2 [2021-08-27 14:36:13,582 INFO L793 eck$LassoCheckResult]: Loop: 130#L29-2 assume !!(main_~i~0 < ~N~0);call main_#t~mem4 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if main_#t~mem4 == main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 124#L13 assume !(0 == __VERIFIER_assert_~cond); 125#L13-3 havoc main_#t~mem4;main_~i~0 := 1 + main_~i~0; 130#L29-2 [2021-08-27 14:36:13,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:36:13,583 INFO L82 PathProgramCache]: Analyzing trace with hash 28693928, now seen corresponding path program 1 times [2021-08-27 14:36:13,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:36:13,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423606052] [2021-08-27 14:36:13,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:36:13,584 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:36:13,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:36:13,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:36:13,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:36:13,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423606052] [2021-08-27 14:36:13,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423606052] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 14:36:13,626 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 14:36:13,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 14:36:13,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212938331] [2021-08-27 14:36:13,628 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 14:36:13,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:36:13,629 INFO L82 PathProgramCache]: Analyzing trace with hash 56828, now seen corresponding path program 1 times [2021-08-27 14:36:13,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:36:13,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333043701] [2021-08-27 14:36:13,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:36:13,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:36:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:13,636 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:36:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:13,641 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:36:13,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:36:13,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 14:36:13,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 14:36:13,723 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. cyclomatic complexity: 4 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) [2021-08-27 14:36:13,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:36:13,739 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-08-27 14:36:13,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 14:36:13,740 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2021-08-27 14:36:13,740 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-27 14:36:13,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 10 transitions. [2021-08-27 14:36:13,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-08-27 14:36:13,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-08-27 14:36:13,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2021-08-27 14:36:13,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:36:13,742 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-08-27 14:36:13,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2021-08-27 14:36:13,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-08-27 14:36:13,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:36:13,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-08-27 14:36:13,743 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-08-27 14:36:13,743 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-08-27 14:36:13,743 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 14:36:13,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2021-08-27 14:36:13,744 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-27 14:36:13,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:36:13,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:36:13,745 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 14:36:13,745 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 14:36:13,745 INFO L791 eck$LassoCheckResult]: Stem: 150#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(19);~N~0 := 0; 151#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~mem4, main_~i~0, main_~k~0, main_~#a~0.base, main_~#a~0.offset;~N~0 := main_#t~nondet3;havoc main_#t~nondet3; 146#L18 assume ~N~0 > 0;havoc main_~i~0;havoc main_~k~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0 := 0;main_~k~0 := 0; 147#L23-2 assume !!(main_~i~0 < ~N~0);call write~int(main_~k~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~k~0, 4);main_~i~0 := 1 + main_~i~0;main_~k~0 := 1 + main_~k~0; 152#L23-2 assume !(main_~i~0 < ~N~0); 153#L23-3 main_~i~0 := 0; 154#L29-2 [2021-08-27 14:36:13,745 INFO L793 eck$LassoCheckResult]: Loop: 154#L29-2 assume !!(main_~i~0 < ~N~0);call main_#t~mem4 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if main_#t~mem4 == main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 148#L13 assume !(0 == __VERIFIER_assert_~cond); 149#L13-3 havoc main_#t~mem4;main_~i~0 := 1 + main_~i~0; 154#L29-2 [2021-08-27 14:36:13,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:36:13,746 INFO L82 PathProgramCache]: Analyzing trace with hash 889513522, now seen corresponding path program 1 times [2021-08-27 14:36:13,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:36:13,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056563287] [2021-08-27 14:36:13,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:36:13,747 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:36:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:13,759 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:36:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:13,772 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:36:13,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:36:13,773 INFO L82 PathProgramCache]: Analyzing trace with hash 56828, now seen corresponding path program 2 times [2021-08-27 14:36:13,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:36:13,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960387156] [2021-08-27 14:36:13,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:36:13,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:36:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:13,778 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:36:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:13,784 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:36:13,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:36:13,785 INFO L82 PathProgramCache]: Analyzing trace with hash -450855381, now seen corresponding path program 1 times [2021-08-27 14:36:13,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:36:13,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217071361] [2021-08-27 14:36:13,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:36:13,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:36:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:13,796 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:36:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:13,813 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:36:14,301 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:36:14,302 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:36:14,302 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:36:14,302 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:36:14,302 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:36:14,302 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:14,302 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:36:14,303 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:36:14,303 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_shadowinit.i_Iteration3_Lasso [2021-08-27 14:36:14,303 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:36:14,303 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:36:14,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:14,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:14,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:14,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:14,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:14,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:14,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:14,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:14,738 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:36:14,738 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:36:14,739 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:14,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:14,745 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) [2021-08-27 14:36:14,746 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 [2021-08-27 14:36:14,751 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 [2021-08-27 14:36:14,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:14,758 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:14,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:14,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:14,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:14,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:14,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:14,772 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:14,799 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 [2021-08-27 14:36:14,800 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:14,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:14,805 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) [2021-08-27 14:36:14,807 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 [2021-08-27 14:36:14,809 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 [2021-08-27 14:36:14,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:14,816 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:14,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:14,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:14,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:14,817 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:14,817 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:14,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:14,859 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 [2021-08-27 14:36:14,860 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:14,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:14,865 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:36:14,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-08-27 14:36:14,867 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 [2021-08-27 14:36:14,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:14,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:14,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:14,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:14,876 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:36:14,877 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:36:14,900 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:14,922 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-08-27 14:36:14,923 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:14,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:14,924 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:36:14,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-08-27 14:36:14,926 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 [2021-08-27 14:36:14,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:14,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:14,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:14,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:14,941 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:36:14,941 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:36:14,968 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:36:14,996 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-08-27 14:36:14,997 INFO L444 ModelExtractionUtils]: 9 out of 28 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-08-27 14:36:14,997 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:14,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:15,001 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:36:15,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-08-27 14:36:15,003 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:36:15,021 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 14:36:15,021 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:36:15,022 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#a~0.base)_2, ULTIMATE.start_main_~#a~0.offset, ULTIMATE.start_main_~i~0) = 2*v_rep(select #length ULTIMATE.start_main_~#a~0.base)_2 - 1*ULTIMATE.start_main_~#a~0.offset - 4*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-08-27 14:36:15,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-08-27 14:36:15,059 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2021-08-27 14:36:15,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:36:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:36:15,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 14:36:15,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:36:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:36:15,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 14:36:15,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:36:15,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:36:15,171 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 [2021-08-27 14:36:15,171 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-08-27 14:36:15,181 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 12 states and 14 transitions. Complement of second has 4 states. [2021-08-27 14:36:15,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 14:36:15,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-08-27 14:36:15,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-08-27 14:36:15,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2021-08-27 14:36:15,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:36:15,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 3 letters. [2021-08-27 14:36:15,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:36:15,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 6 letters. [2021-08-27 14:36:15,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:36:15,184 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2021-08-27 14:36:15,186 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 14:36:15,187 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2021-08-27 14:36:15,187 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 14:36:15,187 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 14:36:15,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 14:36:15,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:36:15,187 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:36:15,187 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:36:15,187 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:36:15,187 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-27 14:36:15,187 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 14:36:15,190 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 14:36:15,190 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 14:36:15,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 02:36:15 BoogieIcfgContainer [2021-08-27 14:36:15,195 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 14:36:15,196 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 14:36:15,196 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 14:36:15,196 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 14:36:15,196 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:36:10" (3/4) ... [2021-08-27 14:36:15,199 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 14:36:15,199 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 14:36:15,201 INFO L168 Benchmark]: Toolchain (without parser) took 5158.47 ms. Allocated memory was 52.4 MB in the beginning and 92.3 MB in the end (delta: 39.8 MB). Free memory was 29.5 MB in the beginning and 29.7 MB in the end (delta: -170.7 kB). Peak memory consumption was 38.5 MB. Max. memory is 16.1 GB. [2021-08-27 14:36:15,202 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 52.4 MB. Free memory was 34.5 MB in the beginning and 34.5 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:36:15,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.56 ms. Allocated memory is still 52.4 MB. Free memory was 29.3 MB in the beginning and 33.5 MB in the end (delta: -4.1 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2021-08-27 14:36:15,207 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.30 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 33.5 MB in the beginning and 46.3 MB in the end (delta: -12.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 14:36:15,207 INFO L168 Benchmark]: Boogie Preprocessor took 38.80 ms. Allocated memory is still 62.9 MB. Free memory was 46.3 MB in the beginning and 45.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:36:15,207 INFO L168 Benchmark]: RCFGBuilder took 345.59 ms. Allocated memory is still 62.9 MB. Free memory was 45.1 MB in the beginning and 32.6 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 14:36:15,208 INFO L168 Benchmark]: BuchiAutomizer took 4525.31 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 32.5 MB in the beginning and 29.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2021-08-27 14:36:15,209 INFO L168 Benchmark]: Witness Printer took 3.28 ms. Allocated memory is still 92.3 MB. Free memory is still 29.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:36:15,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 52.4 MB. Free memory was 34.5 MB in the beginning and 34.5 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 175.56 ms. Allocated memory is still 52.4 MB. Free memory was 29.3 MB in the beginning and 33.5 MB in the end (delta: -4.1 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.30 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 33.5 MB in the beginning and 46.3 MB in the end (delta: -12.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.80 ms. Allocated memory is still 62.9 MB. Free memory was 46.3 MB in the beginning and 45.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 345.59 ms. Allocated memory is still 62.9 MB. Free memory was 45.1 MB in the beginning and 32.6 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4525.31 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 32.5 MB in the beginning and 29.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. * Witness Printer took 3.28 ms. Allocated memory is still 92.3 MB. Free memory is still 29.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[a] + -4 * k and consists of 4 locations. One deterministic module has affine ranking function -1 * a + -4 * i + 2 * unknown-#length-unknown[a] and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 8.0ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 9 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 28 SDtfs, 19 SDslu, 8 SDs, 0 SdLazy, 17 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital176 mio100 ax100 hnf99 lsp93 ukn62 mio100 lsp59 div100 bol100 ite100 ukn100 eq171 hnf93 smp100 dnf100 smp100 tf100 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms VariablesStem: 1 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 14:36:15,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-08-27 14:36:15,466 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...