./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 ff03de63 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-dev-ff03de6 [2021-12-21 22:01:31,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:01:31,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:01:31,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:01:31,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:01:31,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:01:31,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:01:31,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:01:31,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:01:31,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:01:31,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:01:31,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:01:31,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:01:31,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:01:31,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:01:31,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:01:31,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:01:31,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:01:31,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:01:31,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:01:31,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:01:31,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:01:31,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:01:31,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:01:31,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:01:31,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:01:31,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:01:31,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:01:31,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:01:31,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:01:31,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:01:31,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:01:31,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:01:31,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:01:31,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:01:31,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:01:31,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:01:31,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:01:31,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:01:31,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:01:31,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:01:31,890 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-21 22:01:31,903 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:01:31,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:01:31,920 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:01:31,920 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:01:31,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:01:31,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:01:31,921 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:01:31,921 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:01:31,921 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:01:31,921 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:01:31,922 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:01:31,922 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:01:31,922 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:01:31,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:01:31,922 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:01:31,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:01:31,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:01:31,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:01:31,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:01:31,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:01:31,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:01:31,923 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:01:31,923 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:01:31,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:01:31,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:01:31,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:01:31,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:01:31,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:01:31,928 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:01:31,929 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:01:31,929 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2c6859ca90ff0da205f4fa2f88d8f61c0c2d9f9f437471b81ea8abc3f9fd19e [2021-12-21 22:01:32,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:01:32,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:01:32,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:01:32,223 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:01:32,224 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:01:32,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/strspn.i [2021-12-21 22:01:32,313 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4fe5972d/da6f5ed46cae4c908716bea42545d55c/FLAGebd1e0d66 [2021-12-21 22:01:32,854 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:01:32,858 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/strspn.i [2021-12-21 22:01:32,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4fe5972d/da6f5ed46cae4c908716bea42545d55c/FLAGebd1e0d66 [2021-12-21 22:01:33,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4fe5972d/da6f5ed46cae4c908716bea42545d55c [2021-12-21 22:01:33,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:01:33,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:01:33,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:01:33,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:01:33,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:01:33,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:01:33" (1/1) ... [2021-12-21 22:01:33,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1adac2da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:33, skipping insertion in model container [2021-12-21 22:01:33,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:01:33" (1/1) ... [2021-12-21 22:01:33,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:01:33,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:01:33,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:01:33,549 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:01:33,597 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:01:33,616 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:01:33,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:33 WrapperNode [2021-12-21 22:01:33,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:01:33,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:01:33,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:01:33,618 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:01:33,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:33" (1/1) ... [2021-12-21 22:01:33,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:33" (1/1) ... [2021-12-21 22:01:33,654 INFO L137 Inliner]: procedures = 113, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2021-12-21 22:01:33,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:01:33,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:01:33,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:01:33,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:01:33,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:33" (1/1) ... [2021-12-21 22:01:33,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:33" (1/1) ... [2021-12-21 22:01:33,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:33" (1/1) ... [2021-12-21 22:01:33,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:33" (1/1) ... [2021-12-21 22:01:33,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:33" (1/1) ... [2021-12-21 22:01:33,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:33" (1/1) ... [2021-12-21 22:01:33,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:33" (1/1) ... [2021-12-21 22:01:33,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:01:33,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:01:33,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:01:33,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:01:33,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:33" (1/1) ... [2021-12-21 22:01:33,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:33,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:33,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:01:33,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-21 22:01:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 22:01:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 22:01:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 22:01:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 22:01:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:01:33,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:01:33,828 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:01:33,829 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:01:33,947 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:01:33,952 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:01:33,952 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 22:01:33,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:01:33 BoogieIcfgContainer [2021-12-21 22:01:33,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:01:33,954 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:01:33,955 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:01:33,957 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:01:33,957 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:01:33,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:01:33" (1/3) ... [2021-12-21 22:01:33,958 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d3f0662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:01:33, skipping insertion in model container [2021-12-21 22:01:33,958 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:01:33,959 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:33" (2/3) ... [2021-12-21 22:01:33,959 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d3f0662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:01:33, skipping insertion in model container [2021-12-21 22:01:33,959 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:01:33,959 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:01:33" (3/3) ... [2021-12-21 22:01:33,960 INFO L388 chiAutomizerObserver]: Analyzing ICFG strspn.i [2021-12-21 22:01:33,988 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:01:33,989 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:01:33,989 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:01:33,989 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:01:33,989 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:01:33,989 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:01:33,989 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:01:33,989 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:01:34,002 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) [2021-12-21 22:01:34,014 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-12-21 22:01:34,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:01:34,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:01:34,018 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-21 22:01:34,019 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-21 22:01:34,019 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:01:34,019 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) [2021-12-21 22:01:34,020 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-12-21 22:01:34,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:01:34,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:01:34,021 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-21 22:01:34,021 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-21 22:01:34,025 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~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; 10#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; 3#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; 8#L510-4true [2021-12-21 22:01:34,026 INFO L793 eck$LassoCheckResult]: Loop: 8#L510-4true call strspn_#t~mem10#1 := read~int(strspn_~s#1.base, strspn_~s#1.offset, 1); 14#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; 6#L511-6true assume !true; 9#L511-7true call strspn_#t~mem8#1 := read~int(strspn_~a~0#1.base, strspn_~a~0#1.offset, 1); 15#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; 13#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; 8#L510-4true [2021-12-21 22:01:34,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:34,030 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2021-12-21 22:01:34,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:34,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881651887] [2021-12-21 22:01:34,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:34,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:34,139 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:01:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:34,174 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:01:34,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:34,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1366197546, now seen corresponding path program 1 times [2021-12-21 22:01:34,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:34,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985115617] [2021-12-21 22:01:34,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:34,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:01:34,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:01:34,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:01:34,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985115617] [2021-12-21 22:01:34,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985115617] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:01:34,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:01:34,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 22:01:34,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740129150] [2021-12-21 22:01:34,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:01:34,212 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-21 22:01:34,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:01:34,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 22:01:34,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 22:01:34,235 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) [2021-12-21 22:01:34,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:01:34,239 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2021-12-21 22:01:34,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 22:01:34,243 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2021-12-21 22:01:34,244 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-12-21 22:01:34,246 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 15 transitions. [2021-12-21 22:01:34,246 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-12-21 22:01:34,247 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-12-21 22:01:34,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2021-12-21 22:01:34,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:01:34,248 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-12-21 22:01:34,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2021-12-21 22:01:34,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-12-21 22:01:34,262 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) [2021-12-21 22:01:34,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-12-21 22:01:34,263 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-12-21 22:01:34,263 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-12-21 22:01:34,263 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:01:34,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 15 transitions. [2021-12-21 22:01:34,264 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-12-21 22:01:34,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:01:34,264 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:01:34,265 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-21 22:01:34,265 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:01:34,265 INFO L791 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 [2021-12-21 22:01:34,265 INFO L793 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 [2021-12-21 22:01:34,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:34,266 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 2 times [2021-12-21 22:01:34,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:34,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19569557] [2021-12-21 22:01:34,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:34,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:34,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:34,281 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:01:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:34,293 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:01:34,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:34,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1786909933, now seen corresponding path program 1 times [2021-12-21 22:01:34,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:34,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118573127] [2021-12-21 22:01:34,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:34,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:34,314 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:01:34,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:34,322 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:01:34,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:34,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1162005510, now seen corresponding path program 1 times [2021-12-21 22:01:34,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:34,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998700426] [2021-12-21 22:01:34,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:34,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:34,350 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:01:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:34,372 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:01:34,947 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:01:34,947 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:01:34,948 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:01:34,948 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:01:34,948 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:01:34,948 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:34,948 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:01:34,948 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:01:34,948 INFO L133 ssoRankerPreferences]: Filename of dumped script: strspn.i_Iteration2_Lasso [2021-12-21 22:01:34,948 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:01:34,949 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:01:34,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:34,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:34,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:34,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:34,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:34,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:34,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:34,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:34,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:34,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:34,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:34,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:34,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:34,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:34,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:34,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:34,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:34,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:34,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:34,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:35,562 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:01:35,565 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:01:35,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:35,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:35,568 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:01:35,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:35,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:35,582 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:35,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:35,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:35,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:35,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:35,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:35,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-21 22:01:35,596 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:35,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-21 22:01:35,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:35,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:35,614 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:01:35,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-21 22:01:35,620 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:35,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:35,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:35,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:35,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:35,629 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:01:35,630 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:01:35,645 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:35,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-21 22:01:35,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:35,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:35,679 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:01:35,683 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:35,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:35,690 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:35,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:35,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:35,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:35,691 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:35,691 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:35,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-21 22:01:35,704 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:35,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-21 22:01:35,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:35,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:35,724 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:01:35,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-21 22:01:35,726 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:35,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:35,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:35,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:35,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:35,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:01:35,735 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:01:35,747 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:35,764 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 [2021-12-21 22:01:35,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:35,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:35,765 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:01:35,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-21 22:01:35,767 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:35,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:35,774 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:35,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:35,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:35,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:35,775 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:35,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:35,789 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:35,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-21 22:01:35,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:35,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:35,809 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:01:35,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-21 22:01:35,811 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:35,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:35,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:35,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:35,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:35,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:35,818 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:35,818 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:35,833 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:35,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-21 22:01:35,849 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:35,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:35,850 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:01:35,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-21 22:01:35,852 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:35,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:35,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:35,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:35,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:35,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:35,859 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:35,859 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:35,862 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:35,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-21 22:01:35,880 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:35,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:35,882 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:01:35,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-21 22:01:35,884 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:35,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:35,891 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:35,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:35,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:35,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:35,892 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:35,892 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:35,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:35,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-21 22:01:35,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:35,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:35,917 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:01:35,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-21 22:01:35,919 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 [2021-12-21 22:01:35,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:35,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:35,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:35,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:35,927 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:01:35,927 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:01:35,931 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:35,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-21 22:01:35,948 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:35,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:35,950 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:01:35,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-21 22:01:35,953 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:35,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:35,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:35,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:35,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:35,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:35,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:35,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:35,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:35,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-21 22:01:35,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:35,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:35,981 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:01:35,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-21 22:01:35,983 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:35,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:35,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:35,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:35,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:35,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:35,991 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:35,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:35,991 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:36,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-21 22:01:36,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:36,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:36,009 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:01:36,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-21 22:01:36,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:36,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:36,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:36,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:36,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:36,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:36,025 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:36,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:36,034 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:36,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-21 22:01:36,057 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:36,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:36,058 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:01:36,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-21 22:01:36,061 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 [2021-12-21 22:01:36,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:36,067 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:36,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:36,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:36,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:36,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:36,068 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:36,082 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:36,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-21 22:01:36,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:36,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:36,100 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:01:36,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-21 22:01:36,102 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 [2021-12-21 22:01:36,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:36,109 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:36,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:36,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:36,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:36,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:36,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:36,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:36,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-21 22:01:36,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:36,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:36,163 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:01:36,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-21 22:01:36,166 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:36,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:36,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:36,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:36,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:36,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:36,173 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:36,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:36,175 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:36,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-12-21 22:01:36,192 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:36,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:36,193 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:01:36,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-21 22:01:36,196 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:36,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:36,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:36,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:36,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:36,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:36,203 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:36,203 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:36,206 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:36,222 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 [2021-12-21 22:01:36,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:36,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:36,224 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:01:36,238 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:36,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-21 22:01:36,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:36,245 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:36,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:36,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:36,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:36,246 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:36,246 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:36,256 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:36,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-12-21 22:01:36,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:36,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:36,273 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:01:36,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-21 22:01:36,277 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:36,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:36,285 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:36,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:36,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:36,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:36,286 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:36,286 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:36,304 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:36,320 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-21 22:01:36,321 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:36,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:36,322 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) [2021-12-21 22:01:36,325 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 [2021-12-21 22:01:36,326 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:36,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:36,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:36,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:36,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:36,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:36,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:36,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:36,334 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:36,350 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 [2021-12-21 22:01:36,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:36,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:36,352 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) [2021-12-21 22:01:36,356 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 [2021-12-21 22:01:36,357 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:36,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:36,364 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:36,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:36,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:36,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:36,364 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:36,364 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:36,366 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:36,383 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 [2021-12-21 22:01:36,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:36,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:36,384 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) [2021-12-21 22:01:36,385 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 [2021-12-21 22:01:36,387 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:36,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:36,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:36,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:36,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:36,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:01:36,400 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:01:36,427 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:36,445 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 [2021-12-21 22:01:36,446 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:36,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:36,460 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) [2021-12-21 22:01:36,460 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 [2021-12-21 22:01:36,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:36,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:36,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:36,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:36,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:36,470 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:01:36,470 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:01:36,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:36,528 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 [2021-12-21 22:01:36,528 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:36,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:36,529 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) [2021-12-21 22:01:36,530 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 [2021-12-21 22:01:36,531 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:36,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:36,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:36,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:36,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:36,539 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:01:36,539 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:01:36,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:36,572 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 [2021-12-21 22:01:36,572 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:36,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:36,573 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) [2021-12-21 22:01:36,574 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 [2021-12-21 22:01:36,576 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:36,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:36,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:36,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:36,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:36,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:01:36,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:01:36,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:36,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-12-21 22:01:36,616 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:36,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:36,617 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) [2021-12-21 22:01:36,618 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 [2021-12-21 22:01:36,620 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:36,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:36,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:36,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:36,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:36,646 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:01:36,646 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:01:36,663 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:01:36,711 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-12-21 22:01:36,711 INFO L444 ModelExtractionUtils]: 16 out of 25 variables were initially zero. Simplification set additionally 6 variables to zero. [2021-12-21 22:01:36,712 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:36,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:36,716 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) [2021-12-21 22:01:36,735 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 [2021-12-21 22:01:36,735 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:01:36,755 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-21 22:01:36,755 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:01:36,755 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 [] [2021-12-21 22:01:36,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-12-21 22:01:36,813 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2021-12-21 22:01:36,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:01:36,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 22:01:36,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:01:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:01:36,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 22:01:36,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:01:36,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:01:36,958 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 [2021-12-21 22:01:36,959 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) [2021-12-21 22:01:36,997 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. [2021-12-21 22:01:36,998 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 [2021-12-21 22:01:36,999 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) [2021-12-21 22:01:36,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-12-21 22:01:37,000 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 8 letters. [2021-12-21 22:01:37,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:01:37,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 12 letters. Loop has 8 letters. [2021-12-21 22:01:37,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:01:37,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 16 letters. [2021-12-21 22:01:37,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:01:37,002 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2021-12-21 22:01:37,002 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-21 22:01:37,003 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 19 states and 24 transitions. [2021-12-21 22:01:37,003 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-12-21 22:01:37,003 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-21 22:01:37,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2021-12-21 22:01:37,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 22:01:37,003 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-12-21 22:01:37,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2021-12-21 22:01:37,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-21 22:01:37,004 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) [2021-12-21 22:01:37,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2021-12-21 22:01:37,005 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-12-21 22:01:37,005 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-12-21 22:01:37,005 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-21 22:01:37,005 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2021-12-21 22:01:37,006 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-21 22:01:37,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:01:37,006 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:01:37,006 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-21 22:01:37,006 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-21 22:01:37,006 INFO L791 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 [2021-12-21 22:01:37,007 INFO L793 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 [2021-12-21 22:01:37,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:37,007 INFO L85 PathProgramCache]: Analyzing trace with hash 889571309, now seen corresponding path program 1 times [2021-12-21 22:01:37,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:37,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887712939] [2021-12-21 22:01:37,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:37,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:37,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:37,020 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:01:37,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:37,031 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:01:37,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:37,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1696358, now seen corresponding path program 1 times [2021-12-21 22:01:37,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:37,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337224948] [2021-12-21 22:01:37,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:37,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:37,036 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:01:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:37,040 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:01:37,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:37,041 INFO L85 PathProgramCache]: Analyzing trace with hash 736220242, now seen corresponding path program 1 times [2021-12-21 22:01:37,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:37,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89345674] [2021-12-21 22:01:37,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:37,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:37,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:37,054 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:01:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:37,066 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:01:37,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-12-21 22:01:37,777 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:01:37,777 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:01:37,777 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:01:37,777 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:01:37,778 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:01:37,778 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:37,778 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:01:37,778 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:01:37,778 INFO L133 ssoRankerPreferences]: Filename of dumped script: strspn.i_Iteration3_Lasso [2021-12-21 22:01:37,778 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:01:37,778 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:01:37,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:37,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:37,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:37,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:38,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:38,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:38,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:38,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:38,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:38,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:38,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:38,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:38,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:38,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:38,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:38,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:38,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:38,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:38,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:38,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:38,521 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:01:38,521 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:01:38,522 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:38,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:38,523 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) [2021-12-21 22:01:38,525 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 [2021-12-21 22:01:38,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:38,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:38,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:38,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:38,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:38,532 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:01:38,532 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:01:38,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:38,565 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 [2021-12-21 22:01:38,565 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:38,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:38,566 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) [2021-12-21 22:01:38,567 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 [2021-12-21 22:01:38,568 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:38,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:38,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:38,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:38,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:38,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:38,574 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:38,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:38,575 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:38,592 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 [2021-12-21 22:01:38,592 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:38,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:38,593 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) [2021-12-21 22:01:38,594 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 [2021-12-21 22:01:38,595 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:38,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:38,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:38,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:38,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:38,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:38,601 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:38,601 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:38,617 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:38,634 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 [2021-12-21 22:01:38,634 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:38,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:38,635 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) [2021-12-21 22:01:38,636 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 [2021-12-21 22:01:38,637 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:38,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:38,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:38,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:38,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:38,645 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:01:38,645 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:01:38,661 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:38,678 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 [2021-12-21 22:01:38,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:38,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:38,680 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) [2021-12-21 22:01:38,680 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 [2021-12-21 22:01:38,682 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:38,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:38,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:38,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:38,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:38,690 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:01:38,690 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:01:38,705 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:38,722 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 [2021-12-21 22:01:38,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:38,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:38,724 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) [2021-12-21 22:01:38,725 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 [2021-12-21 22:01:38,726 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:38,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:38,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:38,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:38,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:38,738 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:01:38,738 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:01:38,754 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:38,771 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 [2021-12-21 22:01:38,771 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:38,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:38,772 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) [2021-12-21 22:01:38,792 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:38,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:38,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:38,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:38,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:38,799 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:01:38,799 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:01:38,803 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 [2021-12-21 22:01:38,815 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:38,832 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 [2021-12-21 22:01:38,833 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:38,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:38,834 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) [2021-12-21 22:01:38,847 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:38,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:38,853 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-12-21 22:01:38,853 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2021-12-21 22:01:38,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:38,859 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 [2021-12-21 22:01:38,872 INFO L401 nArgumentSynthesizer]: We have 56 Motzkin's Theorem applications. [2021-12-21 22:01:38,873 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2021-12-21 22:01:38,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:38,920 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 [2021-12-21 22:01:38,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:38,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:38,922 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) [2021-12-21 22:01:38,929 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 [2021-12-21 22:01:38,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:38,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:38,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:38,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:38,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:38,946 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:01:38,946 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:01:38,962 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:01:39,006 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2021-12-21 22:01:39,007 INFO L444 ModelExtractionUtils]: 31 out of 52 variables were initially zero. Simplification set additionally 18 variables to zero. [2021-12-21 22:01:39,007 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:39,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:39,008 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) [2021-12-21 22:01:39,009 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 [2021-12-21 22:01:39,010 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:01:39,030 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-21 22:01:39,030 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:01:39,030 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 [] [2021-12-21 22:01:39,047 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 [2021-12-21 22:01:39,088 INFO L297 tatePredicateManager]: 17 out of 18 supporting invariants were superfluous and have been removed [2021-12-21 22:01:39,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:01:39,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-21 22:01:39,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:01:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:01:39,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 22:01:39,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:01:39,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:01:39,179 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 [2021-12-21 22:01:39,179 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) [2021-12-21 22:01:39,208 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. [2021-12-21 22:01:39,209 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 [2021-12-21 22:01:39,210 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) [2021-12-21 22:01:39,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-12-21 22:01:39,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 4 letters. [2021-12-21 22:01:39,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:01:39,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 4 letters. [2021-12-21 22:01:39,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:01:39,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 8 letters. [2021-12-21 22:01:39,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:01:39,211 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 60 transitions. [2021-12-21 22:01:39,212 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-21 22:01:39,212 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 32 states and 40 transitions. [2021-12-21 22:01:39,212 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-12-21 22:01:39,212 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-21 22:01:39,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 40 transitions. [2021-12-21 22:01:39,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 22:01:39,212 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 40 transitions. [2021-12-21 22:01:39,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 40 transitions. [2021-12-21 22:01:39,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2021-12-21 22:01:39,213 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) [2021-12-21 22:01:39,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-12-21 22:01:39,214 INFO L704 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-12-21 22:01:39,214 INFO L587 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-12-21 22:01:39,214 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-21 22:01:39,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2021-12-21 22:01:39,214 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-21 22:01:39,214 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:01:39,214 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:01:39,215 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:01:39,215 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-21 22:01:39,215 INFO L791 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 [2021-12-21 22:01:39,215 INFO L793 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 [2021-12-21 22:01:39,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:39,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1779209729, now seen corresponding path program 1 times [2021-12-21 22:01:39,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:39,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675557582] [2021-12-21 22:01:39,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:39,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:01:39,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:01:39,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:01:39,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675557582] [2021-12-21 22:01:39,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675557582] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:01:39,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:01:39,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 22:01:39,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175342345] [2021-12-21 22:01:39,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:01:39,290 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-21 22:01:39,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:39,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1696358, now seen corresponding path program 2 times [2021-12-21 22:01:39,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:39,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535051324] [2021-12-21 22:01:39,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:39,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:39,293 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:01:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:39,303 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:01:39,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:01:39,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 22:01:39,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-21 22:01:39,396 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) [2021-12-21 22:01:39,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:01:39,414 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2021-12-21 22:01:39,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 22:01:39,415 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 42 transitions. [2021-12-21 22:01:39,415 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-21 22:01:39,416 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 32 states and 38 transitions. [2021-12-21 22:01:39,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-12-21 22:01:39,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-12-21 22:01:39,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 38 transitions. [2021-12-21 22:01:39,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 22:01:39,416 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 38 transitions. [2021-12-21 22:01:39,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 38 transitions. [2021-12-21 22:01:39,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2021-12-21 22:01:39,418 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) [2021-12-21 22:01:39,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2021-12-21 22:01:39,418 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2021-12-21 22:01:39,418 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2021-12-21 22:01:39,418 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-21 22:01:39,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 33 transitions. [2021-12-21 22:01:39,419 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-21 22:01:39,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:01:39,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:01:39,419 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:01:39,419 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-21 22:01:39,419 INFO L791 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 [2021-12-21 22:01:39,419 INFO L793 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 [2021-12-21 22:01:39,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:39,419 INFO L85 PathProgramCache]: Analyzing trace with hash 4202367, now seen corresponding path program 2 times [2021-12-21 22:01:39,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:39,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983055549] [2021-12-21 22:01:39,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:39,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:39,449 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:01:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:39,464 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:01:39,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:39,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1696358, now seen corresponding path program 3 times [2021-12-21 22:01:39,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:39,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752523314] [2021-12-21 22:01:39,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:39,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:39,468 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:01:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:39,471 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:01:39,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:39,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1675488540, now seen corresponding path program 1 times [2021-12-21 22:01:39,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:39,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184055082] [2021-12-21 22:01:39,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:39,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:39,485 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:01:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:39,497 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:01:39,669 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 [2021-12-21 22:01:40,066 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:01:40,066 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:01:40,066 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:01:40,066 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:01:40,066 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:01:40,067 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:40,067 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:01:40,067 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:01:40,067 INFO L133 ssoRankerPreferences]: Filename of dumped script: strspn.i_Iteration5_Lasso [2021-12-21 22:01:40,067 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:01:40,067 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:01:40,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:40,906 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:01:40,906 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:01:40,906 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:40,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:40,912 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) [2021-12-21 22:01:40,913 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 [2021-12-21 22:01:40,914 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:40,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:40,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:40,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:40,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:40,921 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:01:40,921 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:01:40,936 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:40,952 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 [2021-12-21 22:01:40,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:40,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:40,954 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) [2021-12-21 22:01:40,955 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 [2021-12-21 22:01:40,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:40,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:40,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:40,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:40,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:40,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:40,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:40,966 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:40,966 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:40,982 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 [2021-12-21 22:01:40,982 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:40,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:40,983 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) [2021-12-21 22:01:40,986 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 [2021-12-21 22:01:40,986 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:40,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:40,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:40,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:40,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:40,994 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:01:40,994 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:01:40,996 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:41,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-12-21 22:01:41,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:41,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:41,014 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) [2021-12-21 22:01:41,015 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 [2021-12-21 22:01:41,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:41,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:41,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:41,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:41,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:41,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:41,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:41,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:41,034 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:41,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-12-21 22:01:41,052 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:41,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:41,053 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) [2021-12-21 22:01:41,054 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 [2021-12-21 22:01:41,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:41,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:41,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:41,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:41,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:41,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:41,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:41,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:41,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:41,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-12-21 22:01:41,100 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:41,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:41,101 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) [2021-12-21 22:01:41,107 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 [2021-12-21 22:01:41,108 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:41,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:41,114 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:41,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:41,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:41,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:41,114 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:41,114 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:41,115 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:41,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-12-21 22:01:41,133 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:41,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:41,134 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) [2021-12-21 22:01:41,135 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 [2021-12-21 22:01:41,136 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:41,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:41,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:01:41,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:41,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:41,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:41,142 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:01:41,142 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:01:41,157 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:41,173 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 [2021-12-21 22:01:41,174 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:41,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:41,174 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) [2021-12-21 22:01:41,184 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 [2021-12-21 22:01:41,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:41,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:41,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:41,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:41,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:41,192 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:01:41,192 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:01:41,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:41,213 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 [2021-12-21 22:01:41,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:41,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:41,214 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) [2021-12-21 22:01:41,216 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 [2021-12-21 22:01:41,216 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:41,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:41,230 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-12-21 22:01:41,230 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2021-12-21 22:01:41,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:41,264 INFO L401 nArgumentSynthesizer]: We have 72 Motzkin's Theorem applications. [2021-12-21 22:01:41,264 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2021-12-21 22:01:41,321 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:41,360 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 [2021-12-21 22:01:41,361 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:41,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:41,362 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) [2021-12-21 22:01:41,364 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:41,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:41,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:41,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:41,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:41,375 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 [2021-12-21 22:01:41,376 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:01:41,376 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:01:41,392 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:01:41,407 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 [2021-12-21 22:01:41,408 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:41,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:41,408 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) [2021-12-21 22:01:41,431 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 [2021-12-21 22:01:41,432 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:01:41,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:01:41,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:01:41,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:01:41,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:01:41,452 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:01:41,452 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:01:41,471 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:01:41,521 INFO L443 ModelExtractionUtils]: Simplification made 29 calls to the SMT solver. [2021-12-21 22:01:41,521 INFO L444 ModelExtractionUtils]: 9 out of 49 variables were initially zero. Simplification set additionally 37 variables to zero. [2021-12-21 22:01:41,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:41,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:41,529 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) [2021-12-21 22:01:41,530 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 [2021-12-21 22:01:41,531 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:01:41,537 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-21 22:01:41,537 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:01:41,537 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 [] [2021-12-21 22:01:41,552 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 [2021-12-21 22:01:41,639 INFO L297 tatePredicateManager]: 34 out of 34 supporting invariants were superfluous and have been removed [2021-12-21 22:01:41,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:01:41,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 22:01:41,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:01:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:01:41,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-21 22:01:41,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:01:41,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:01:41,722 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-21 22:01:41,723 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) [2021-12-21 22:01:41,741 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. [2021-12-21 22:01:41,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-21 22:01:41,744 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) [2021-12-21 22:01:41,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2021-12-21 22:01:41,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2021-12-21 22:01:41,744 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:01:41,745 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-21 22:01:41,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:01:41,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 22:01:41,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:01:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:01:41,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-21 22:01:41,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:01:41,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:01:41,821 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 [2021-12-21 22:01:41,821 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) [2021-12-21 22:01:41,833 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. [2021-12-21 22:01:41,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-21 22:01:41,834 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) [2021-12-21 22:01:41,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2021-12-21 22:01:41,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2021-12-21 22:01:41,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:01:41,835 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-21 22:01:41,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:01:41,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 22:01:41,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:01:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:01:41,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-21 22:01:41,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:01:41,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:01:41,897 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 [2021-12-21 22:01:41,897 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) [2021-12-21 22:01:41,908 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. [2021-12-21 22:01:41,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-21 22:01:41,909 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) [2021-12-21 22:01:41,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2021-12-21 22:01:41,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 14 letters. Loop has 4 letters. [2021-12-21 22:01:41,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:01:41,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 18 letters. Loop has 4 letters. [2021-12-21 22:01:41,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:01:41,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 14 letters. Loop has 8 letters. [2021-12-21 22:01:41,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:01:41,911 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 57 transitions. [2021-12-21 22:01:41,912 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 22:01:41,912 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 0 states and 0 transitions. [2021-12-21 22:01:41,912 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-21 22:01:41,912 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-21 22:01:41,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-21 22:01:41,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:01:41,912 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:01:41,913 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:01:41,913 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:01:41,913 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-21 22:01:41,913 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-21 22:01:41,913 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 22:01:41,913 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-21 22:01:41,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:01:41 BoogieIcfgContainer [2021-12-21 22:01:41,918 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:01:41,918 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:01:41,918 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:01:41,918 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:01:41,918 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:01:33" (3/4) ... [2021-12-21 22:01:41,920 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 22:01:41,920 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:01:41,921 INFO L158 Benchmark]: Toolchain (without parser) took 8629.97ms. Allocated memory was 90.2MB in the beginning and 159.4MB in the end (delta: 69.2MB). Free memory was 69.6MB in the beginning and 60.6MB in the end (delta: 8.9MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2021-12-21 22:01:41,921 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 90.2MB. Free memory is still 66.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:01:41,921 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.09ms. Allocated memory is still 90.2MB. Free memory was 69.4MB in the beginning and 59.6MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 22:01:41,922 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.94ms. Allocated memory is still 90.2MB. Free memory was 59.6MB in the beginning and 57.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:01:41,922 INFO L158 Benchmark]: Boogie Preprocessor took 16.38ms. Allocated memory is still 90.2MB. Free memory was 57.6MB in the beginning and 56.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:01:41,922 INFO L158 Benchmark]: RCFGBuilder took 282.11ms. Allocated memory is still 90.2MB. Free memory was 56.4MB in the beginning and 45.2MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-21 22:01:41,922 INFO L158 Benchmark]: BuchiAutomizer took 7963.19ms. Allocated memory was 90.2MB in the beginning and 159.4MB in the end (delta: 69.2MB). Free memory was 45.0MB in the beginning and 60.6MB in the end (delta: -15.6MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. [2021-12-21 22:01:41,923 INFO L158 Benchmark]: Witness Printer took 2.47ms. Allocated memory is still 159.4MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:01:41,924 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 90.2MB. Free memory is still 66.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.09ms. Allocated memory is still 90.2MB. Free memory was 69.4MB in the beginning and 59.6MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.94ms. Allocated memory is still 90.2MB. Free memory was 59.6MB in the beginning and 57.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.38ms. Allocated memory is still 90.2MB. Free memory was 57.6MB in the beginning and 56.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 282.11ms. Allocated memory is still 90.2MB. Free memory was 56.4MB in the beginning and 45.2MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 7963.19ms. Allocated memory was 90.2MB in the beginning and 159.4MB in the end (delta: 69.2MB). Free memory was 45.0MB in the beginning and 60.6MB in the end (delta: -15.6MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. * Witness Printer took 2.47ms. Allocated memory is still 159.4MB. Free memory is still 60.6MB. 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 7.9s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 7.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. 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 27 states and ocurred in iteration 4. 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: 107ms VariablesStem: 4 VariablesLoop: 2 DisjunctsStem: 4 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 72 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-21 22:01:41,945 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 [2021-12-21 22:01:42,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE