./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-dietlibc/strspn.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-dietlibc/strspn.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d2c6859ca90ff0da205f4fa2f88d8f61c0c2d9f9f437471b81ea8abc3f9fd19e --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 01:35:48,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 01:35:48,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 01:35:48,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 01:35:48,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 01:35:48,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 01:35:48,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 01:35:48,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 01:35:48,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 01:35:48,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 01:35:48,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 01:35:48,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 01:35:48,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 01:35:48,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 01:35:48,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 01:35:48,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 01:35:48,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 01:35:48,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 01:35:48,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 01:35:48,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 01:35:48,301 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 01:35:48,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 01:35:48,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 01:35:48,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 01:35:48,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 01:35:48,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 01:35:48,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 01:35:48,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 01:35:48,311 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 01:35:48,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 01:35:48,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 01:35:48,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 01:35:48,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 01:35:48,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 01:35:48,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 01:35:48,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 01:35:48,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 01:35:48,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 01:35:48,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 01:35:48,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 01:35:48,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 01:35:48,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 01:35:48,325 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-22 01:35:48,350 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 01:35:48,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 01:35:48,351 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 01:35:48,351 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 01:35:48,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 01:35:48,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 01:35:48,352 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 01:35:48,353 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 01:35:48,353 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 01:35:48,353 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 01:35:48,354 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 01:35:48,354 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 01:35:48,354 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 01:35:48,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 01:35:48,354 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 01:35:48,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 01:35:48,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 01:35:48,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 01:35:48,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 01:35:48,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 01:35:48,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 01:35:48,355 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 01:35:48,355 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 01:35:48,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 01:35:48,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 01:35:48,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 01:35:48,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 01:35:48,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 01:35:48,358 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 01:35:48,358 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2c6859ca90ff0da205f4fa2f88d8f61c0c2d9f9f437471b81ea8abc3f9fd19e [2022-07-22 01:35:48,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 01:35:48,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 01:35:48,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 01:35:48,699 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 01:35:48,699 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 01:35:48,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/strspn.i [2022-07-22 01:35:48,777 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/862be91d3/89189a174c9140d7b74363fd83997093/FLAG7aaa8d3b3 [2022-07-22 01:35:49,225 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 01:35:49,226 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/strspn.i [2022-07-22 01:35:49,236 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/862be91d3/89189a174c9140d7b74363fd83997093/FLAG7aaa8d3b3 [2022-07-22 01:35:49,248 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/862be91d3/89189a174c9140d7b74363fd83997093 [2022-07-22 01:35:49,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 01:35:49,251 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 01:35:49,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 01:35:49,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 01:35:49,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 01:35:49,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:35:49" (1/1) ... [2022-07-22 01:35:49,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd7c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:49, skipping insertion in model container [2022-07-22 01:35:49,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:35:49" (1/1) ... [2022-07-22 01:35:49,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 01:35:49,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 01:35:49,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:35:49,543 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 01:35:49,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:35:49,601 INFO L208 MainTranslator]: Completed translation [2022-07-22 01:35:49,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:49 WrapperNode [2022-07-22 01:35:49,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 01:35:49,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 01:35:49,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 01:35:49,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 01:35:49,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:49" (1/1) ... [2022-07-22 01:35:49,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:49" (1/1) ... [2022-07-22 01:35:49,646 INFO L137 Inliner]: procedures = 113, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2022-07-22 01:35:49,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 01:35:49,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 01:35:49,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 01:35:49,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 01:35:49,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:49" (1/1) ... [2022-07-22 01:35:49,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:49" (1/1) ... [2022-07-22 01:35:49,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:49" (1/1) ... [2022-07-22 01:35:49,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:49" (1/1) ... [2022-07-22 01:35:49,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:49" (1/1) ... [2022-07-22 01:35:49,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:49" (1/1) ... [2022-07-22 01:35:49,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:49" (1/1) ... [2022-07-22 01:35:49,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 01:35:49,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 01:35:49,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 01:35:49,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 01:35:49,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:49" (1/1) ... [2022-07-22 01:35:49,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:49,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:49,711 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:49,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-22 01:35:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 01:35:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 01:35:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 01:35:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 01:35:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 01:35:49,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 01:35:49,795 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 01:35:49,796 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 01:35:49,898 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 01:35:49,902 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 01:35:49,902 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 01:35:49,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:35:49 BoogieIcfgContainer [2022-07-22 01:35:49,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 01:35:49,904 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 01:35:49,904 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 01:35:49,906 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 01:35:49,906 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:35:49,906 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 01:35:49" (1/3) ... [2022-07-22 01:35:49,907 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@783158ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:35:49, skipping insertion in model container [2022-07-22 01:35:49,907 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:35:49,907 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:49" (2/3) ... [2022-07-22 01:35:49,908 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@783158ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:35:49, skipping insertion in model container [2022-07-22 01:35:49,908 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:35:49,908 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:35:49" (3/3) ... [2022-07-22 01:35:49,908 INFO L354 chiAutomizerObserver]: Analyzing ICFG strspn.i [2022-07-22 01:35:49,943 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 01:35:49,944 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 01:35:49,944 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 01:35:49,944 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 01:35:49,944 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 01:35:49,944 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 01:35:49,944 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 01:35:49,944 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 01:35:49,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:49,976 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-22 01:35:49,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:35:49,977 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:35:49,980 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-22 01:35:49,995 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-22 01:35:49,995 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 01:35:49,996 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:49,997 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-22 01:35:49,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:35:49,997 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:35:49,997 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-22 01:35:49,998 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-22 01:35:50,002 INFO L752 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~nondet13#1, main_#t~malloc14#1.base, main_#t~malloc14#1.offset, main_#t~ret15#1, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 9#L521true assume !(main_~in_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1; 2#L525true assume !(main_~out_len~0#1 < 1);call main_#t~malloc14#1.base, main_#t~malloc14#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc14#1.base, main_#t~malloc14#1.offset;call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strspn } true;strspn_#in~s#1.base, strspn_#in~s#1.offset, strspn_#in~accept#1.base, strspn_#in~accept#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strspn_#res#1;havoc strspn_#t~post3#1.base, strspn_#t~post3#1.offset, strspn_#t~mem6#1, strspn_#t~mem4#1, strspn_#t~mem5#1, strspn_#t~short7#1, strspn_#t~mem8#1, strspn_#t~post9#1, strspn_#t~post2#1.base, strspn_#t~post2#1.offset, strspn_#t~mem10#1, strspn_~s#1.base, strspn_~s#1.offset, strspn_~accept#1.base, strspn_~accept#1.offset, strspn_~l~0#1, strspn_~a~0#1.base, strspn_~a~0#1.offset;strspn_~s#1.base, strspn_~s#1.offset := strspn_#in~s#1.base, strspn_#in~s#1.offset;strspn_~accept#1.base, strspn_~accept#1.offset := strspn_#in~accept#1.base, strspn_#in~accept#1.offset;strspn_~l~0#1 := 0;havoc strspn_~a~0#1.base, strspn_~a~0#1.offset; 7#L510-4true [2022-07-22 01:35:50,002 INFO L754 eck$LassoCheckResult]: Loop: 7#L510-4true call strspn_#t~mem10#1 := read~int(strspn_~s#1.base, strspn_~s#1.offset, 1); 13#L510-1true assume !!(0 != strspn_#t~mem10#1);havoc strspn_#t~mem10#1;strspn_~a~0#1.base, strspn_~a~0#1.offset := strspn_~accept#1.base, strspn_~accept#1.offset; 5#L511-6true assume !true; 8#L511-7true call strspn_#t~mem8#1 := read~int(strspn_~a~0#1.base, strspn_~a~0#1.offset, 1); 14#L512true assume !(0 == strspn_#t~mem8#1);havoc strspn_#t~mem8#1;strspn_#t~post9#1 := strspn_~l~0#1;strspn_~l~0#1 := 1 + strspn_#t~post9#1;havoc strspn_#t~post9#1; 12#L510-3true strspn_#t~post2#1.base, strspn_#t~post2#1.offset := strspn_~s#1.base, strspn_~s#1.offset;strspn_~s#1.base, strspn_~s#1.offset := strspn_#t~post2#1.base, 1 + strspn_#t~post2#1.offset;havoc strspn_#t~post2#1.base, strspn_#t~post2#1.offset; 7#L510-4true [2022-07-22 01:35:50,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:50,007 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2022-07-22 01:35:50,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:50,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456755087] [2022-07-22 01:35:50,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:50,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:50,130 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:50,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:50,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:50,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1366197546, now seen corresponding path program 1 times [2022-07-22 01:35:50,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:50,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414110190] [2022-07-22 01:35:50,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:50,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:50,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:35:50,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:35:50,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414110190] [2022-07-22 01:35:50,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414110190] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:35:50,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:35:50,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 01:35:50,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007577893] [2022-07-22 01:35:50,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:35:50,198 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 01:35:50,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:35:50,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 01:35:50,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 01:35:50,225 INFO L87 Difference]: Start difference. First operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:50,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:35:50,232 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2022-07-22 01:35:50,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 01:35:50,237 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2022-07-22 01:35:50,239 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-22 01:35:50,242 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 15 transitions. [2022-07-22 01:35:50,243 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-07-22 01:35:50,243 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-07-22 01:35:50,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2022-07-22 01:35:50,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:35:50,244 INFO L369 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-07-22 01:35:50,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2022-07-22 01:35:50,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-07-22 01:35:50,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:50,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-07-22 01:35:50,264 INFO L392 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-07-22 01:35:50,264 INFO L374 stractBuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-07-22 01:35:50,264 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 01:35:50,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 15 transitions. [2022-07-22 01:35:50,265 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-22 01:35:50,265 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:35:50,265 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:35:50,265 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-22 01:35:50,265 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:35:50,266 INFO L752 eck$LassoCheckResult]: Stem: 46#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 47#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~nondet13#1, main_#t~malloc14#1.base, main_#t~malloc14#1.offset, main_#t~ret15#1, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 50#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1; 44#L525 assume !(main_~out_len~0#1 < 1);call main_#t~malloc14#1.base, main_#t~malloc14#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc14#1.base, main_#t~malloc14#1.offset;call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strspn } true;strspn_#in~s#1.base, strspn_#in~s#1.offset, strspn_#in~accept#1.base, strspn_#in~accept#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strspn_#res#1;havoc strspn_#t~post3#1.base, strspn_#t~post3#1.offset, strspn_#t~mem6#1, strspn_#t~mem4#1, strspn_#t~mem5#1, strspn_#t~short7#1, strspn_#t~mem8#1, strspn_#t~post9#1, strspn_#t~post2#1.base, strspn_#t~post2#1.offset, strspn_#t~mem10#1, strspn_~s#1.base, strspn_~s#1.offset, strspn_~accept#1.base, strspn_~accept#1.offset, strspn_~l~0#1, strspn_~a~0#1.base, strspn_~a~0#1.offset;strspn_~s#1.base, strspn_~s#1.offset := strspn_#in~s#1.base, strspn_#in~s#1.offset;strspn_~accept#1.base, strspn_~accept#1.offset := strspn_#in~accept#1.base, strspn_#in~accept#1.offset;strspn_~l~0#1 := 0;havoc strspn_~a~0#1.base, strspn_~a~0#1.offset; 45#L510-4 [2022-07-22 01:35:50,266 INFO L754 eck$LassoCheckResult]: Loop: 45#L510-4 call strspn_#t~mem10#1 := read~int(strspn_~s#1.base, strspn_~s#1.offset, 1); 51#L510-1 assume !!(0 != strspn_#t~mem10#1);havoc strspn_#t~mem10#1;strspn_~a~0#1.base, strspn_~a~0#1.offset := strspn_~accept#1.base, strspn_~accept#1.offset; 48#L511-6 call strspn_#t~mem6#1 := read~int(strspn_~a~0#1.base, strspn_~a~0#1.offset, 1);strspn_#t~short7#1 := 0 != strspn_#t~mem6#1; 49#L511-1 assume strspn_#t~short7#1;call strspn_#t~mem4#1 := read~int(strspn_~s#1.base, strspn_~s#1.offset, 1);call strspn_#t~mem5#1 := read~int(strspn_~a~0#1.base, strspn_~a~0#1.offset, 1);strspn_#t~short7#1 := strspn_#t~mem4#1 != strspn_#t~mem5#1; 54#L511-3 assume !strspn_#t~short7#1;havoc strspn_#t~mem6#1;havoc strspn_#t~mem4#1;havoc strspn_#t~mem5#1;havoc strspn_#t~short7#1; 52#L511-7 call strspn_#t~mem8#1 := read~int(strspn_~a~0#1.base, strspn_~a~0#1.offset, 1); 53#L512 assume !(0 == strspn_#t~mem8#1);havoc strspn_#t~mem8#1;strspn_#t~post9#1 := strspn_~l~0#1;strspn_~l~0#1 := 1 + strspn_#t~post9#1;havoc strspn_#t~post9#1; 56#L510-3 strspn_#t~post2#1.base, strspn_#t~post2#1.offset := strspn_~s#1.base, strspn_~s#1.offset;strspn_~s#1.base, strspn_~s#1.offset := strspn_#t~post2#1.base, 1 + strspn_#t~post2#1.offset;havoc strspn_#t~post2#1.base, strspn_#t~post2#1.offset; 45#L510-4 [2022-07-22 01:35:50,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:50,267 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 2 times [2022-07-22 01:35:50,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:50,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315090688] [2022-07-22 01:35:50,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:50,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:50,298 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:50,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:50,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:50,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1786909933, now seen corresponding path program 1 times [2022-07-22 01:35:50,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:50,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623615128] [2022-07-22 01:35:50,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:50,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:50,343 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:50,351 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:50,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:50,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1162005510, now seen corresponding path program 1 times [2022-07-22 01:35:50,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:50,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991960704] [2022-07-22 01:35:50,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:50,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:50,379 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:50,428 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:50,993 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:35:50,993 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:35:50,993 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:35:50,993 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:35:50,993 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:35:50,993 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:50,993 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:35:50,993 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:35:50,993 INFO L133 ssoRankerPreferences]: Filename of dumped script: strspn.i_Iteration2_Lasso [2022-07-22 01:35:50,994 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:35:50,994 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:35:51,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:51,709 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:35:51,711 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:35:51,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:51,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:51,732 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:51,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-22 01:35:51,736 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:51,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:51,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:51,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:51,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:51,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:51,745 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:51,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:51,750 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:51,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-22 01:35:51,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:51,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:51,772 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:51,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-22 01:35:51,774 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:51,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:51,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:51,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:51,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:51,786 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:51,786 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:51,797 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:51,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:51,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:51,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:51,836 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:51,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-22 01:35:51,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:51,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:51,844 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:51,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:51,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:51,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:51,845 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:51,845 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:51,850 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:51,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:51,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:51,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:51,867 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:51,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-22 01:35:51,916 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:51,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:51,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:51,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:51,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:51,925 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:51,925 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:51,937 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:51,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:51,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:51,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:51,955 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:51,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-22 01:35:51,964 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:51,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:51,971 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:51,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:51,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:51,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:51,971 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:51,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:51,974 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:51,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:51,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:51,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:51,991 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:51,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-22 01:35:51,996 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 [2022-07-22 01:35:52,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,002 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:52,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,003 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:52,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:52,006 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:52,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:52,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,026 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-22 01:35:52,028 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:52,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:52,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,035 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:52,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:52,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:52,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:52,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,059 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-22 01:35:52,061 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:52,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,067 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:52,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,068 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:52,068 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:52,082 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:52,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:52,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,100 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-22 01:35:52,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:52,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,111 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:52,111 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:52,113 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:52,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:52,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,131 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-22 01:35:52,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:52,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:52,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,151 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:52,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:52,160 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:52,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:52,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,192 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-22 01:35:52,194 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:52,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,201 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:52,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,202 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:52,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:52,205 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:52,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:52,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,223 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-22 01:35:52,226 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:52,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:52,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,233 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:52,233 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:52,248 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:52,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-07-22 01:35:52,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,265 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-22 01:35:52,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:52,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,281 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:52,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,282 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:52,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:52,297 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:52,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:52,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,314 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-22 01:35:52,317 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:52,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,322 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:52,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,323 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:52,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:52,327 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:52,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-07-22 01:35:52,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,344 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-22 01:35:52,346 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:52,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:52,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,353 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:52,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:52,354 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:52,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:52,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,371 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-22 01:35:52,373 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:52,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:52,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,379 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:52,379 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:52,380 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:52,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:52,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,397 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-22 01:35:52,399 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:52,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,406 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:52,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:52,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:52,421 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:52,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:52,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,452 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-22 01:35:52,454 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:52,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:52,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:52,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:52,474 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:52,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:52,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,493 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:52,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,504 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:52,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-22 01:35:52,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:52,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:52,509 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:52,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:52,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,528 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-22 01:35:52,538 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:52,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:52,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,545 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:52,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:52,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:52,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:52,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,565 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-22 01:35:52,566 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:52,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,595 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:52,595 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:52,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:52,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:52,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,650 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-07-22 01:35:52,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:52,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,658 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:52,658 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:52,674 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:52,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:52,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,691 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-07-22 01:35:52,693 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:52,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,699 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:52,699 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:52,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:52,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:52,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,731 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-07-22 01:35:52,734 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:52,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,741 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:52,741 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:52,756 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:52,772 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-07-22 01:35:52,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,773 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-07-22 01:35:52,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:52,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:52,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:52,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:52,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:52,803 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:52,803 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:52,819 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:35:52,835 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2022-07-22 01:35:52,835 INFO L444 ModelExtractionUtils]: 16 out of 25 variables were initially zero. Simplification set additionally 6 variables to zero. [2022-07-22 01:35:52,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:52,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:52,837 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:52,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-07-22 01:35:52,839 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:35:52,860 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-22 01:35:52,860 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:35:52,860 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strspn_~s#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_1) = -1*ULTIMATE.start_strspn_~s#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_1 Supporting invariants [] [2022-07-22 01:35:52,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-07-22 01:35:52,898 INFO L293 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2022-07-22 01:35:52,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:52,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 01:35:52,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:35:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:53,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 01:35:53,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:35:53,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:35:53,087 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2022-07-22 01:35:53,088 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:53,144 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 27 transitions. Complement of second has 5 states. [2022-07-22 01:35:53,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 01:35:53,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:53,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-07-22 01:35:53,148 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 8 letters. [2022-07-22 01:35:53,149 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:53,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 12 letters. Loop has 8 letters. [2022-07-22 01:35:53,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:53,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 16 letters. [2022-07-22 01:35:53,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:53,150 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2022-07-22 01:35:53,152 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 01:35:53,153 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 19 states and 24 transitions. [2022-07-22 01:35:53,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-07-22 01:35:53,153 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-07-22 01:35:53,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2022-07-22 01:35:53,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:35:53,154 INFO L369 hiAutomatonCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-07-22 01:35:53,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2022-07-22 01:35:53,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-22 01:35:53,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:53,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2022-07-22 01:35:53,157 INFO L392 hiAutomatonCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-07-22 01:35:53,157 INFO L374 stractBuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-07-22 01:35:53,157 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 01:35:53,157 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2022-07-22 01:35:53,159 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 01:35:53,159 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:35:53,159 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:35:53,160 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-07-22 01:35:53,160 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-22 01:35:53,160 INFO L752 eck$LassoCheckResult]: Stem: 181#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 182#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~nondet13#1, main_#t~malloc14#1.base, main_#t~malloc14#1.offset, main_#t~ret15#1, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 187#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1; 179#L525 assume !(main_~out_len~0#1 < 1);call main_#t~malloc14#1.base, main_#t~malloc14#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc14#1.base, main_#t~malloc14#1.offset;call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strspn } true;strspn_#in~s#1.base, strspn_#in~s#1.offset, strspn_#in~accept#1.base, strspn_#in~accept#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strspn_#res#1;havoc strspn_#t~post3#1.base, strspn_#t~post3#1.offset, strspn_#t~mem6#1, strspn_#t~mem4#1, strspn_#t~mem5#1, strspn_#t~short7#1, strspn_#t~mem8#1, strspn_#t~post9#1, strspn_#t~post2#1.base, strspn_#t~post2#1.offset, strspn_#t~mem10#1, strspn_~s#1.base, strspn_~s#1.offset, strspn_~accept#1.base, strspn_~accept#1.offset, strspn_~l~0#1, strspn_~a~0#1.base, strspn_~a~0#1.offset;strspn_~s#1.base, strspn_~s#1.offset := strspn_#in~s#1.base, strspn_#in~s#1.offset;strspn_~accept#1.base, strspn_~accept#1.offset := strspn_#in~accept#1.base, strspn_#in~accept#1.offset;strspn_~l~0#1 := 0;havoc strspn_~a~0#1.base, strspn_~a~0#1.offset; 180#L510-4 call strspn_#t~mem10#1 := read~int(strspn_~s#1.base, strspn_~s#1.offset, 1); 189#L510-1 assume !!(0 != strspn_#t~mem10#1);havoc strspn_#t~mem10#1;strspn_~a~0#1.base, strspn_~a~0#1.offset := strspn_~accept#1.base, strspn_~accept#1.offset; 183#L511-6 [2022-07-22 01:35:53,160 INFO L754 eck$LassoCheckResult]: Loop: 183#L511-6 call strspn_#t~mem6#1 := read~int(strspn_~a~0#1.base, strspn_~a~0#1.offset, 1);strspn_#t~short7#1 := 0 != strspn_#t~mem6#1; 184#L511-1 assume strspn_#t~short7#1;call strspn_#t~mem4#1 := read~int(strspn_~s#1.base, strspn_~s#1.offset, 1);call strspn_#t~mem5#1 := read~int(strspn_~a~0#1.base, strspn_~a~0#1.offset, 1);strspn_#t~short7#1 := strspn_#t~mem4#1 != strspn_#t~mem5#1; 193#L511-3 assume !!strspn_#t~short7#1;havoc strspn_#t~mem6#1;havoc strspn_#t~mem4#1;havoc strspn_#t~mem5#1;havoc strspn_#t~short7#1; 194#L511-5 strspn_#t~post3#1.base, strspn_#t~post3#1.offset := strspn_~a~0#1.base, strspn_~a~0#1.offset;strspn_~a~0#1.base, strspn_~a~0#1.offset := strspn_#t~post3#1.base, 1 + strspn_#t~post3#1.offset;havoc strspn_#t~post3#1.base, strspn_#t~post3#1.offset; 183#L511-6 [2022-07-22 01:35:53,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:53,163 INFO L85 PathProgramCache]: Analyzing trace with hash 889571309, now seen corresponding path program 1 times [2022-07-22 01:35:53,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:53,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730065846] [2022-07-22 01:35:53,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:53,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:53,187 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:53,204 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:53,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:53,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1696358, now seen corresponding path program 1 times [2022-07-22 01:35:53,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:53,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570136739] [2022-07-22 01:35:53,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:53,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:53,213 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:53,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:53,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:53,217 INFO L85 PathProgramCache]: Analyzing trace with hash 736220242, now seen corresponding path program 1 times [2022-07-22 01:35:53,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:53,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784661090] [2022-07-22 01:35:53,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:53,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:53,240 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:53,253 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:53,292 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-07-22 01:35:53,847 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:35:53,847 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:35:53,847 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:35:53,847 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:35:53,847 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:35:53,847 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:53,847 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:35:53,847 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:35:53,847 INFO L133 ssoRankerPreferences]: Filename of dumped script: strspn.i_Iteration3_Lasso [2022-07-22 01:35:53,847 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:35:53,847 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:35:53,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:53,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:53,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:53,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:54,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:54,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:54,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:54,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:54,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:54,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:54,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:54,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:54,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:54,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:54,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:54,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:54,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:54,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:54,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:54,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:54,620 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:35:54,620 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:35:54,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:54,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:54,621 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:54,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-07-22 01:35:54,623 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:54,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:54,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:54,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:54,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:54,630 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:54,630 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:54,646 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:54,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:54,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:54,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:54,664 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:54,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-07-22 01:35:54,666 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:54,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:54,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:54,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:54,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:54,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:54,672 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:54,672 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:54,681 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:54,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:54,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:54,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:54,699 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:54,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-07-22 01:35:54,701 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:54,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:54,706 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:54,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:54,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:54,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:54,707 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:54,707 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:54,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:54,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:54,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:54,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:54,734 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:54,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-07-22 01:35:54,736 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:54,741 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:54,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:54,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:54,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:54,743 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:54,743 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:54,753 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:54,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:54,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:54,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:54,772 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:54,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-07-22 01:35:54,774 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:54,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:54,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:54,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:54,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:54,783 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:54,783 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:54,799 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:54,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:54,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:54,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:54,817 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:54,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-07-22 01:35:54,819 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:54,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:54,825 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:54,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:54,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:54,832 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:54,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:54,848 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:54,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:54,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:54,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:54,874 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:54,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-07-22 01:35:54,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:54,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:54,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:54,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:54,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:54,883 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:54,883 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:54,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:54,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:54,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:54,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:54,917 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:54,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-07-22 01:35:54,919 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:54,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:54,925 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2022-07-22 01:35:54,925 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2022-07-22 01:35:54,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:54,934 INFO L401 nArgumentSynthesizer]: We have 56 Motzkin's Theorem applications. [2022-07-22 01:35:54,934 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2022-07-22 01:35:54,960 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:54,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:54,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:54,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:54,984 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:54,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-07-22 01:35:54,985 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:54,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:54,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:54,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:54,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:54,999 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:54,999 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:55,019 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:35:55,062 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2022-07-22 01:35:55,062 INFO L444 ModelExtractionUtils]: 31 out of 52 variables were initially zero. Simplification set additionally 18 variables to zero. [2022-07-22 01:35:55,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:55,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:55,063 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:55,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-07-22 01:35:55,065 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:35:55,082 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-22 01:35:55,082 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:35:55,082 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc14#1.base)_2, ULTIMATE.start_strspn_~a~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc14#1.base)_2 - 1*ULTIMATE.start_strspn_~a~0#1.offset Supporting invariants [] [2022-07-22 01:35:55,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:55,138 INFO L293 tatePredicateManager]: 17 out of 18 supporting invariants were superfluous and have been removed [2022-07-22 01:35:55,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:55,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:55,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 01:35:55,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:35:55,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:55,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 01:35:55,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:35:55,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:35:55,249 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2022-07-22 01:35:55,249 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:55,278 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 48 states and 60 transitions. Complement of second has 6 states. [2022-07-22 01:35:55,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 01:35:55,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:55,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-22 01:35:55,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 4 letters. [2022-07-22 01:35:55,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:55,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 4 letters. [2022-07-22 01:35:55,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:55,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 8 letters. [2022-07-22 01:35:55,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:55,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 60 transitions. [2022-07-22 01:35:55,288 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 01:35:55,289 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 32 states and 40 transitions. [2022-07-22 01:35:55,289 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-07-22 01:35:55,289 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-07-22 01:35:55,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 40 transitions. [2022-07-22 01:35:55,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:35:55,289 INFO L369 hiAutomatonCegarLoop]: Abstraction has 32 states and 40 transitions. [2022-07-22 01:35:55,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 40 transitions. [2022-07-22 01:35:55,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2022-07-22 01:35:55,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:55,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2022-07-22 01:35:55,293 INFO L392 hiAutomatonCegarLoop]: Abstraction has 26 states and 33 transitions. [2022-07-22 01:35:55,293 INFO L374 stractBuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2022-07-22 01:35:55,293 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-22 01:35:55,293 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2022-07-22 01:35:55,294 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 01:35:55,294 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:35:55,294 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:35:55,295 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:35:55,295 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-22 01:35:55,296 INFO L752 eck$LassoCheckResult]: Stem: 379#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 380#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~nondet13#1, main_#t~malloc14#1.base, main_#t~malloc14#1.offset, main_#t~ret15#1, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 385#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1; 377#L525 assume !(main_~out_len~0#1 < 1);call main_#t~malloc14#1.base, main_#t~malloc14#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc14#1.base, main_#t~malloc14#1.offset;call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strspn } true;strspn_#in~s#1.base, strspn_#in~s#1.offset, strspn_#in~accept#1.base, strspn_#in~accept#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strspn_#res#1;havoc strspn_#t~post3#1.base, strspn_#t~post3#1.offset, strspn_#t~mem6#1, strspn_#t~mem4#1, strspn_#t~mem5#1, strspn_#t~short7#1, strspn_#t~mem8#1, strspn_#t~post9#1, strspn_#t~post2#1.base, strspn_#t~post2#1.offset, strspn_#t~mem10#1, strspn_~s#1.base, strspn_~s#1.offset, strspn_~accept#1.base, strspn_~accept#1.offset, strspn_~l~0#1, strspn_~a~0#1.base, strspn_~a~0#1.offset;strspn_~s#1.base, strspn_~s#1.offset := strspn_#in~s#1.base, strspn_#in~s#1.offset;strspn_~accept#1.base, strspn_~accept#1.offset := strspn_#in~accept#1.base, strspn_#in~accept#1.offset;strspn_~l~0#1 := 0;havoc strspn_~a~0#1.base, strspn_~a~0#1.offset; 378#L510-4 call strspn_#t~mem10#1 := read~int(strspn_~s#1.base, strspn_~s#1.offset, 1); 386#L510-1 assume !!(0 != strspn_#t~mem10#1);havoc strspn_#t~mem10#1;strspn_~a~0#1.base, strspn_~a~0#1.offset := strspn_~accept#1.base, strspn_~accept#1.offset; 402#L511-6 call strspn_#t~mem6#1 := read~int(strspn_~a~0#1.base, strspn_~a~0#1.offset, 1);strspn_#t~short7#1 := 0 != strspn_#t~mem6#1; 397#L511-1 assume !strspn_#t~short7#1; 394#L511-3 assume !strspn_#t~short7#1;havoc strspn_#t~mem6#1;havoc strspn_#t~mem4#1;havoc strspn_#t~mem5#1;havoc strspn_#t~short7#1; 390#L511-7 call strspn_#t~mem8#1 := read~int(strspn_~a~0#1.base, strspn_~a~0#1.offset, 1); 391#L512 assume !(0 == strspn_#t~mem8#1);havoc strspn_#t~mem8#1;strspn_#t~post9#1 := strspn_~l~0#1;strspn_~l~0#1 := 1 + strspn_#t~post9#1;havoc strspn_#t~post9#1; 395#L510-3 strspn_#t~post2#1.base, strspn_#t~post2#1.offset := strspn_~s#1.base, strspn_~s#1.offset;strspn_~s#1.base, strspn_~s#1.offset := strspn_#t~post2#1.base, 1 + strspn_#t~post2#1.offset;havoc strspn_#t~post2#1.base, strspn_#t~post2#1.offset; 387#L510-4 call strspn_#t~mem10#1 := read~int(strspn_~s#1.base, strspn_~s#1.offset, 1); 389#L510-1 assume !!(0 != strspn_#t~mem10#1);havoc strspn_#t~mem10#1;strspn_~a~0#1.base, strspn_~a~0#1.offset := strspn_~accept#1.base, strspn_~accept#1.offset; 381#L511-6 [2022-07-22 01:35:55,296 INFO L754 eck$LassoCheckResult]: Loop: 381#L511-6 call strspn_#t~mem6#1 := read~int(strspn_~a~0#1.base, strspn_~a~0#1.offset, 1);strspn_#t~short7#1 := 0 != strspn_#t~mem6#1; 382#L511-1 assume strspn_#t~short7#1;call strspn_#t~mem4#1 := read~int(strspn_~s#1.base, strspn_~s#1.offset, 1);call strspn_#t~mem5#1 := read~int(strspn_~a~0#1.base, strspn_~a~0#1.offset, 1);strspn_#t~short7#1 := strspn_#t~mem4#1 != strspn_#t~mem5#1; 392#L511-3 assume !!strspn_#t~short7#1;havoc strspn_#t~mem6#1;havoc strspn_#t~mem4#1;havoc strspn_#t~mem5#1;havoc strspn_#t~short7#1; 393#L511-5 strspn_#t~post3#1.base, strspn_#t~post3#1.offset := strspn_~a~0#1.base, strspn_~a~0#1.offset;strspn_~a~0#1.base, strspn_~a~0#1.offset := strspn_#t~post3#1.base, 1 + strspn_#t~post3#1.offset;havoc strspn_#t~post3#1.base, strspn_#t~post3#1.offset; 381#L511-6 [2022-07-22 01:35:55,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:55,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1779209729, now seen corresponding path program 1 times [2022-07-22 01:35:55,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:55,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954523177] [2022-07-22 01:35:55,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:55,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:55,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:35:55,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:35:55,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954523177] [2022-07-22 01:35:55,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954523177] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:35:55,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:35:55,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 01:35:55,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838459750] [2022-07-22 01:35:55,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:35:55,365 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-22 01:35:55,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:55,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1696358, now seen corresponding path program 2 times [2022-07-22 01:35:55,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:55,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018040508] [2022-07-22 01:35:55,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:55,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:55,370 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:55,373 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:55,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:35:55,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 01:35:55,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 01:35:55,453 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:55,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:35:55,471 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2022-07-22 01:35:55,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 01:35:55,472 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 42 transitions. [2022-07-22 01:35:55,473 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-07-22 01:35:55,473 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 32 states and 38 transitions. [2022-07-22 01:35:55,473 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-07-22 01:35:55,473 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-07-22 01:35:55,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 38 transitions. [2022-07-22 01:35:55,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:35:55,473 INFO L369 hiAutomatonCegarLoop]: Abstraction has 32 states and 38 transitions. [2022-07-22 01:35:55,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 38 transitions. [2022-07-22 01:35:55,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2022-07-22 01:35:55,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 26 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:55,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2022-07-22 01:35:55,475 INFO L392 hiAutomatonCegarLoop]: Abstraction has 27 states and 33 transitions. [2022-07-22 01:35:55,475 INFO L374 stractBuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2022-07-22 01:35:55,475 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-22 01:35:55,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 33 transitions. [2022-07-22 01:35:55,476 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 01:35:55,476 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:35:55,476 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:35:55,476 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:35:55,476 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-22 01:35:55,477 INFO L752 eck$LassoCheckResult]: Stem: 450#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 451#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~nondet13#1, main_#t~malloc14#1.base, main_#t~malloc14#1.offset, main_#t~ret15#1, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 456#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1; 448#L525 assume !(main_~out_len~0#1 < 1);call main_#t~malloc14#1.base, main_#t~malloc14#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc14#1.base, main_#t~malloc14#1.offset;call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strspn } true;strspn_#in~s#1.base, strspn_#in~s#1.offset, strspn_#in~accept#1.base, strspn_#in~accept#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strspn_#res#1;havoc strspn_#t~post3#1.base, strspn_#t~post3#1.offset, strspn_#t~mem6#1, strspn_#t~mem4#1, strspn_#t~mem5#1, strspn_#t~short7#1, strspn_#t~mem8#1, strspn_#t~post9#1, strspn_#t~post2#1.base, strspn_#t~post2#1.offset, strspn_#t~mem10#1, strspn_~s#1.base, strspn_~s#1.offset, strspn_~accept#1.base, strspn_~accept#1.offset, strspn_~l~0#1, strspn_~a~0#1.base, strspn_~a~0#1.offset;strspn_~s#1.base, strspn_~s#1.offset := strspn_#in~s#1.base, strspn_#in~s#1.offset;strspn_~accept#1.base, strspn_~accept#1.offset := strspn_#in~accept#1.base, strspn_#in~accept#1.offset;strspn_~l~0#1 := 0;havoc strspn_~a~0#1.base, strspn_~a~0#1.offset; 449#L510-4 call strspn_#t~mem10#1 := read~int(strspn_~s#1.base, strspn_~s#1.offset, 1); 457#L510-1 assume !!(0 != strspn_#t~mem10#1);havoc strspn_#t~mem10#1;strspn_~a~0#1.base, strspn_~a~0#1.offset := strspn_~accept#1.base, strspn_~accept#1.offset; 468#L511-6 call strspn_#t~mem6#1 := read~int(strspn_~a~0#1.base, strspn_~a~0#1.offset, 1);strspn_#t~short7#1 := 0 != strspn_#t~mem6#1; 473#L511-1 assume strspn_#t~short7#1;call strspn_#t~mem4#1 := read~int(strspn_~s#1.base, strspn_~s#1.offset, 1);call strspn_#t~mem5#1 := read~int(strspn_~a~0#1.base, strspn_~a~0#1.offset, 1);strspn_#t~short7#1 := strspn_#t~mem4#1 != strspn_#t~mem5#1; 472#L511-3 assume !strspn_#t~short7#1;havoc strspn_#t~mem6#1;havoc strspn_#t~mem4#1;havoc strspn_#t~mem5#1;havoc strspn_#t~short7#1; 461#L511-7 call strspn_#t~mem8#1 := read~int(strspn_~a~0#1.base, strspn_~a~0#1.offset, 1); 462#L512 assume !(0 == strspn_#t~mem8#1);havoc strspn_#t~mem8#1;strspn_#t~post9#1 := strspn_~l~0#1;strspn_~l~0#1 := 1 + strspn_#t~post9#1;havoc strspn_#t~post9#1; 467#L510-3 strspn_#t~post2#1.base, strspn_#t~post2#1.offset := strspn_~s#1.base, strspn_~s#1.offset;strspn_~s#1.base, strspn_~s#1.offset := strspn_#t~post2#1.base, 1 + strspn_#t~post2#1.offset;havoc strspn_#t~post2#1.base, strspn_#t~post2#1.offset; 458#L510-4 call strspn_#t~mem10#1 := read~int(strspn_~s#1.base, strspn_~s#1.offset, 1); 460#L510-1 assume !!(0 != strspn_#t~mem10#1);havoc strspn_#t~mem10#1;strspn_~a~0#1.base, strspn_~a~0#1.offset := strspn_~accept#1.base, strspn_~accept#1.offset; 452#L511-6 [2022-07-22 01:35:55,477 INFO L754 eck$LassoCheckResult]: Loop: 452#L511-6 call strspn_#t~mem6#1 := read~int(strspn_~a~0#1.base, strspn_~a~0#1.offset, 1);strspn_#t~short7#1 := 0 != strspn_#t~mem6#1; 453#L511-1 assume strspn_#t~short7#1;call strspn_#t~mem4#1 := read~int(strspn_~s#1.base, strspn_~s#1.offset, 1);call strspn_#t~mem5#1 := read~int(strspn_~a~0#1.base, strspn_~a~0#1.offset, 1);strspn_#t~short7#1 := strspn_#t~mem4#1 != strspn_#t~mem5#1; 463#L511-3 assume !!strspn_#t~short7#1;havoc strspn_#t~mem6#1;havoc strspn_#t~mem4#1;havoc strspn_#t~mem5#1;havoc strspn_#t~short7#1; 464#L511-5 strspn_#t~post3#1.base, strspn_#t~post3#1.offset := strspn_~a~0#1.base, strspn_~a~0#1.offset;strspn_~a~0#1.base, strspn_~a~0#1.offset := strspn_#t~post3#1.base, 1 + strspn_#t~post3#1.offset;havoc strspn_#t~post3#1.base, strspn_#t~post3#1.offset; 452#L511-6 [2022-07-22 01:35:55,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:55,477 INFO L85 PathProgramCache]: Analyzing trace with hash 4202367, now seen corresponding path program 2 times [2022-07-22 01:35:55,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:55,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612572391] [2022-07-22 01:35:55,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:55,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:55,490 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:55,503 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:55,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:55,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1696358, now seen corresponding path program 3 times [2022-07-22 01:35:55,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:55,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838707300] [2022-07-22 01:35:55,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:55,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:55,507 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:55,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:55,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:55,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1675488540, now seen corresponding path program 1 times [2022-07-22 01:35:55,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:55,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547797133] [2022-07-22 01:35:55,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:55,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:55,522 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:55,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:56,127 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:35:56,127 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:35:56,127 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:35:56,127 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:35:56,127 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:35:56,127 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:56,127 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:35:56,127 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:35:56,127 INFO L133 ssoRankerPreferences]: Filename of dumped script: strspn.i_Iteration5_Lasso [2022-07-22 01:35:56,128 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:35:56,128 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:35:56,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:56,983 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:35:56,983 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:35:56,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:57,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:57,001 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:57,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-07-22 01:35:57,004 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:57,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:57,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:57,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:57,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:57,032 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:57,032 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:57,047 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:57,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:57,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:57,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:57,072 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:57,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-07-22 01:35:57,073 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:57,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:57,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:57,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:57,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:57,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:57,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:57,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:57,085 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:57,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:57,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:57,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:57,102 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:57,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-07-22 01:35:57,104 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:57,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:57,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:57,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:57,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:57,111 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:57,111 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:57,113 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:57,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2022-07-22 01:35:57,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:57,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:57,130 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:57,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-07-22 01:35:57,132 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:57,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:57,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:57,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:57,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:57,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:57,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:57,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:57,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:57,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2022-07-22 01:35:57,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:57,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:57,155 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:57,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-07-22 01:35:57,158 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:57,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:57,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:57,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:57,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:57,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:57,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:57,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:57,165 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:57,180 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2022-07-22 01:35:57,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:57,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:57,182 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:57,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-07-22 01:35:57,185 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:57,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:57,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:57,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:57,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:57,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:57,191 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:57,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:57,206 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:57,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:57,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:57,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:57,229 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:57,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-07-22 01:35:57,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:57,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:57,235 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:57,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:57,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:57,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:57,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:57,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:57,237 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:57,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:57,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:57,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:57,253 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:57,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-07-22 01:35:57,255 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:57,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:57,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:57,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:57,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:57,262 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:57,262 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:57,265 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:57,281 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2022-07-22 01:35:57,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:57,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:57,282 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:57,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-07-22 01:35:57,284 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:57,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:57,290 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2022-07-22 01:35:57,290 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2022-07-22 01:35:57,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:57,309 INFO L401 nArgumentSynthesizer]: We have 72 Motzkin's Theorem applications. [2022-07-22 01:35:57,309 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2022-07-22 01:35:57,347 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:57,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:57,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:57,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:57,365 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:57,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-07-22 01:35:57,393 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:57,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:57,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:57,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:57,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:57,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:57,400 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:57,416 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:57,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:57,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:57,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:57,432 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:57,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-07-22 01:35:57,434 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:57,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:57,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:57,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:57,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:57,448 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:57,448 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:57,465 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:35:57,505 INFO L443 ModelExtractionUtils]: Simplification made 29 calls to the SMT solver. [2022-07-22 01:35:57,505 INFO L444 ModelExtractionUtils]: 9 out of 49 variables were initially zero. Simplification set additionally 37 variables to zero. [2022-07-22 01:35:57,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:57,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:57,506 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:57,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-07-22 01:35:57,509 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:35:57,526 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-22 01:35:57,526 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:35:57,526 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_strspn_~a~0#1.base)_3, ULTIMATE.start_strspn_~a~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_strspn_~a~0#1.base)_3 - 1*ULTIMATE.start_strspn_~a~0#1.offset Supporting invariants [] [2022-07-22 01:35:57,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:57,629 INFO L293 tatePredicateManager]: 34 out of 34 supporting invariants were superfluous and have been removed [2022-07-22 01:35:57,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:57,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:35:57,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:35:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:57,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 01:35:57,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:35:57,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:35:57,695 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-22 01:35:57,695 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:57,712 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 52 transitions. Complement of second has 5 states. [2022-07-22 01:35:57,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 01:35:57,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:57,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2022-07-22 01:35:57,714 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2022-07-22 01:35:57,714 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:57,714 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:35:57,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:57,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:35:57,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:35:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:57,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 01:35:57,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:35:57,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:57,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:35:57,808 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-22 01:35:57,808 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:57,826 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 52 transitions. Complement of second has 5 states. [2022-07-22 01:35:57,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 01:35:57,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:57,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2022-07-22 01:35:57,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2022-07-22 01:35:57,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:57,829 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:35:57,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:57,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:35:57,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:35:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:57,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 01:35:57,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:35:57,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:35:57,899 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-22 01:35:57,900 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:57,915 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 57 transitions. Complement of second has 4 states. [2022-07-22 01:35:57,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 01:35:57,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:57,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2022-07-22 01:35:57,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 14 letters. Loop has 4 letters. [2022-07-22 01:35:57,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:57,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 18 letters. Loop has 4 letters. [2022-07-22 01:35:57,921 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:57,921 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 14 letters. Loop has 8 letters. [2022-07-22 01:35:57,921 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:57,921 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 57 transitions. [2022-07-22 01:35:57,926 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 01:35:57,926 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 0 states and 0 transitions. [2022-07-22 01:35:57,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-22 01:35:57,926 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-22 01:35:57,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-22 01:35:57,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:35:57,926 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:35:57,926 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:35:57,927 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:35:57,927 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-22 01:35:57,927 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-22 01:35:57,927 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 01:35:57,927 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 01:35:57,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 01:35:57 BoogieIcfgContainer [2022-07-22 01:35:57,935 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 01:35:57,935 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 01:35:57,935 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 01:35:57,936 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 01:35:57,936 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:35:49" (3/4) ... [2022-07-22 01:35:57,937 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 01:35:57,938 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 01:35:57,938 INFO L158 Benchmark]: Toolchain (without parser) took 8687.31ms. Allocated memory was 60.8MB in the beginning and 121.6MB in the end (delta: 60.8MB). Free memory was 39.6MB in the beginning and 81.9MB in the end (delta: -42.3MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2022-07-22 01:35:57,939 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 60.8MB. Free memory was 40.9MB in the beginning and 40.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:35:57,939 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.53ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 38.2MB in the end (delta: 1.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 01:35:57,939 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.80ms. Allocated memory is still 60.8MB. Free memory was 38.0MB in the beginning and 36.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 01:35:57,939 INFO L158 Benchmark]: Boogie Preprocessor took 38.89ms. Allocated memory is still 60.8MB. Free memory was 36.3MB in the beginning and 35.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:35:57,940 INFO L158 Benchmark]: RCFGBuilder took 217.19ms. Allocated memory was 60.8MB in the beginning and 83.9MB in the end (delta: 23.1MB). Free memory was 35.0MB in the beginning and 61.9MB in the end (delta: -26.9MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-07-22 01:35:57,940 INFO L158 Benchmark]: BuchiAutomizer took 8031.03ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 61.9MB in the beginning and 81.9MB in the end (delta: -19.9MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2022-07-22 01:35:57,940 INFO L158 Benchmark]: Witness Printer took 2.32ms. Allocated memory is still 121.6MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:35:57,941 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 60.8MB. Free memory was 40.9MB in the beginning and 40.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.53ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 38.2MB in the end (delta: 1.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.80ms. Allocated memory is still 60.8MB. Free memory was 38.0MB in the beginning and 36.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.89ms. Allocated memory is still 60.8MB. Free memory was 36.3MB in the beginning and 35.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 217.19ms. Allocated memory was 60.8MB in the beginning and 83.9MB in the end (delta: 23.1MB). Free memory was 35.0MB in the beginning and 61.9MB in the end (delta: -26.9MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 8031.03ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 61.9MB in the beginning and 81.9MB in the end (delta: -19.9MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * Witness Printer took 2.32ms. Allocated memory is still 121.6MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (in_len)] + -1 * s and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (out_len)] + -1 * a and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[a] + -1 * a and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.0s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 7.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 120 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 117 mSDsluCounter, 143 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 103 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital225 mio100 ax100 hnf100 lsp95 ukn83 mio100 lsp39 div100 bol100 ite100 ukn100 eq191 hnf88 smp100 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 65ms VariablesStem: 4 VariablesLoop: 2 DisjunctsStem: 4 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 72 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-22 01:35:57,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE