./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/string-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loops/string-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 826ba3ecb74a591f4e23afc2c932e6d22d2291c8 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 15:18:20,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:18:20,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:18:20,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:18:20,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:18:20,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:18:20,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:18:20,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:18:20,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:18:20,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:18:20,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:18:20,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:18:20,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:18:20,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:18:20,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:18:20,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:18:20,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:18:20,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:18:20,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:18:20,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:18:20,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:18:20,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:18:20,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:18:20,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:18:20,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:18:20,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:18:20,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:18:20,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:18:20,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:18:20,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:18:20,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:18:20,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:18:20,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:18:20,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:18:20,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:18:20,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:18:20,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:18:20,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:18:20,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:18:20,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:18:20,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:18:20,945 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:18:20,975 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:18:20,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:18:20,976 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:18:20,976 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:18:20,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:18:20,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:18:20,977 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:18:20,978 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:18:20,978 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:18:20,978 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:18:20,979 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:18:20,979 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:18:20,979 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:18:20,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:18:20,979 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:18:20,979 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:18:20,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:18:20,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:18:20,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:18:20,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:18:20,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:18:20,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:18:20,980 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:18:20,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:18:20,981 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:18:20,981 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:18:20,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:18:20,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:18:20,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:18:20,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:18:20,982 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:18:20,982 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:18:20,983 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:18:20,983 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 826ba3ecb74a591f4e23afc2c932e6d22d2291c8 [2021-08-27 15:18:21,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:18:21,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:18:21,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:18:21,218 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:18:21,218 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:18:21,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/string-2.i [2021-08-27 15:18:21,267 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b668a46f/4dc8056b91bb48a6a65c9f71921c431f/FLAG627ae6b8c [2021-08-27 15:18:21,648 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:18:21,648 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/string-2.i [2021-08-27 15:18:21,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b668a46f/4dc8056b91bb48a6a65c9f71921c431f/FLAG627ae6b8c [2021-08-27 15:18:21,672 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b668a46f/4dc8056b91bb48a6a65c9f71921c431f [2021-08-27 15:18:21,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:18:21,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:18:21,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:18:21,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:18:21,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:18:21,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:18:21" (1/1) ... [2021-08-27 15:18:21,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2232496e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:21, skipping insertion in model container [2021-08-27 15:18:21,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:18:21" (1/1) ... [2021-08-27 15:18:21,687 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:18:21,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:18:21,795 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/string-2.i[896,909] [2021-08-27 15:18:21,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:18:21,826 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:18:21,843 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/string-2.i[896,909] [2021-08-27 15:18:21,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:18:21,904 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:18:21,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:21 WrapperNode [2021-08-27 15:18:21,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:18:21,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:18:21,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:18:21,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:18:21,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:21" (1/1) ... [2021-08-27 15:18:21,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:21" (1/1) ... [2021-08-27 15:18:21,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:18:21,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:18:21,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:18:21,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:18:21,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:21" (1/1) ... [2021-08-27 15:18:21,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:21" (1/1) ... [2021-08-27 15:18:21,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:21" (1/1) ... [2021-08-27 15:18:21,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:21" (1/1) ... [2021-08-27 15:18:21,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:21" (1/1) ... [2021-08-27 15:18:21,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:21" (1/1) ... [2021-08-27 15:18:21,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:21" (1/1) ... [2021-08-27 15:18:21,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:18:21,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:18:21,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:18:21,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:18:21,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:21" (1/1) ... [2021-08-27 15:18:21,981 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:21,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:21,994 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:22,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 15:18:22,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:18:22,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:18:22,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 15:18:22,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:18:22,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:18:22,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-27 15:18:22,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 15:18:22,335 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:18:22,335 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-08-27 15:18:22,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:18:22 BoogieIcfgContainer [2021-08-27 15:18:22,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:18:22,337 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:18:22,337 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:18:22,339 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:18:22,340 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:18:22,340 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:18:21" (1/3) ... [2021-08-27 15:18:22,341 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d5f9237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:18:22, skipping insertion in model container [2021-08-27 15:18:22,341 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:18:22,341 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:21" (2/3) ... [2021-08-27 15:18:22,341 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d5f9237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:18:22, skipping insertion in model container [2021-08-27 15:18:22,341 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:18:22,342 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:18:22" (3/3) ... [2021-08-27 15:18:22,342 INFO L389 chiAutomizerObserver]: Analyzing ICFG string-2.i [2021-08-27 15:18:22,383 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:18:22,383 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:18:22,384 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:18:22,384 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:18:22,384 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:18:22,384 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:18:22,384 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:18:22,384 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:18:22,395 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.625) internal successors, (39), 24 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:22,406 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2021-08-27 15:18:22,406 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:18:22,406 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:18:22,409 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 15:18:22,410 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:18:22,410 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:18:22,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.625) internal successors, (39), 24 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:22,412 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2021-08-27 15:18:22,412 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:18:22,412 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:18:22,412 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 15:18:22,412 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:18:22,416 INFO L791 eck$LassoCheckResult]: Stem: 15#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 6#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 8#L35-3true [2021-08-27 15:18:22,417 INFO L793 eck$LassoCheckResult]: Loop: 8#L35-3true assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 10#L35-2true main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8#L35-3true [2021-08-27 15:18:22,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:22,421 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-08-27 15:18:22,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:22,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386019935] [2021-08-27 15:18:22,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:22,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:22,493 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:22,549 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:22,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:22,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-08-27 15:18:22,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:22,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49715854] [2021-08-27 15:18:22,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:22,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:22,565 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:22,581 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:22,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:22,582 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-08-27 15:18:22,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:22,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990450428] [2021-08-27 15:18:22,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:22,583 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:22,603 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:22,636 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:23,160 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:18:23,160 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:18:23,160 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:18:23,160 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:18:23,161 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:18:23,161 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:23,161 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:18:23,161 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:18:23,161 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration1_Lasso [2021-08-27 15:18:23,161 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:18:23,162 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:18:23,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:23,656 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:18:23,658 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:18:23,659 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:23,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:23,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:23,682 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 [2021-08-27 15:18:23,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-27 15:18:23,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:23,689 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:23,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:23,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:23,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:23,691 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:23,691 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:23,705 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:23,724 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 [2021-08-27 15:18:23,724 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:23,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:23,729 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:23,739 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:23,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:23,746 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:23,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:23,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:23,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:23,747 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:23,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:23,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-27 15:18:23,751 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:23,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:23,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:23,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:23,769 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:23,781 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:23,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-27 15:18:23,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:23,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:23,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:23,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:23,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:23,789 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:23,789 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:23,800 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:23,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:23,815 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:23,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:23,816 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:23,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-27 15:18:23,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:23,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:23,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:23,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:23,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:23,831 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:23,831 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:23,849 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:23,865 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 [2021-08-27 15:18:23,865 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:23,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:23,866 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:23,871 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:23,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-08-27 15:18:23,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:23,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:23,879 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:23,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:23,879 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:23,880 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:23,880 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:23,895 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:23,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:23,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:23,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:23,915 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:23,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:23,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:23,935 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:23,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:23,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:23,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:23,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:23,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:23,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-08-27 15:18:23,941 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:23,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:23,957 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:23,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:23,958 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:23,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-08-27 15:18:23,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:23,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:23,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:23,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:23,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:23,971 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:23,971 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:23,984 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:24,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:24,001 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:24,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:24,002 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:24,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-08-27 15:18:24,004 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:24,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:24,010 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:24,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:24,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:24,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:24,011 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:24,011 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:24,014 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:24,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:24,034 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:24,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:24,034 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:24,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-08-27 15:18:24,036 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:24,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:24,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:24,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:24,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:24,045 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:24,045 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:24,061 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:24,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:24,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:24,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:24,077 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:24,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-08-27 15:18:24,079 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:24,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:24,086 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:24,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:24,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:24,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:24,086 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:24,087 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:24,092 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:24,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:24,108 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:24,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:24,109 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:24,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-08-27 15:18:24,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:24,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:24,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:24,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:24,117 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:24,119 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:24,119 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:24,128 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:24,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:24,146 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:24,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:24,146 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:24,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-08-27 15:18:24,148 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:24,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:24,154 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:24,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:24,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:24,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:24,155 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:24,155 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:24,156 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:24,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-08-27 15:18:24,173 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:24,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:24,174 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:24,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-08-27 15:18:24,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:24,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:24,183 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:24,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:24,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:24,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:24,184 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:24,184 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:24,204 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:24,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:24,222 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:24,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:24,223 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:24,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-08-27 15:18:24,225 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:24,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:24,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:24,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:24,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:24,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:24,232 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:24,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:24,248 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:24,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:24,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:24,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:24,267 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:24,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-08-27 15:18:24,269 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:24,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:24,275 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:24,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:24,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:24,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:24,276 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:24,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:24,291 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:24,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:24,309 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:24,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:24,313 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:24,323 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:24,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:24,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:24,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:24,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:24,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-08-27 15:18:24,340 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:24,340 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:24,359 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:24,377 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 [2021-08-27 15:18:24,377 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:24,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:24,378 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:24,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-08-27 15:18:24,380 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:24,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:24,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:24,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:24,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:24,389 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:24,389 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:24,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:24,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:24,413 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:24,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:24,414 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:24,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-08-27 15:18:24,415 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:24,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:24,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:24,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:24,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:24,423 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:24,423 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:24,449 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:24,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:24,465 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:24,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:24,473 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) [2021-08-27 15:18:24,485 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:24,491 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 [2021-08-27 15:18:24,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:24,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:24,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:24,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:24,494 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:24,494 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:24,496 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:24,511 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 [2021-08-27 15:18:24,512 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:24,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:24,512 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) [2021-08-27 15:18:24,513 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 [2021-08-27 15:18:24,514 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:24,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:24,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:24,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:24,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:24,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:24,522 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:24,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:24,524 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:24,540 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 [2021-08-27 15:18:24,540 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:24,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:24,541 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) [2021-08-27 15:18:24,543 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 [2021-08-27 15:18:24,543 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:24,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:24,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:24,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:24,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:24,552 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:24,552 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:24,566 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:24,582 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-08-27 15:18:24,582 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:24,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:24,583 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) [2021-08-27 15:18:24,585 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 [2021-08-27 15:18:24,586 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:24,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:24,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:24,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:24,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:24,600 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:24,600 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:24,613 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:18:24,656 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-08-27 15:18:24,656 INFO L444 ModelExtractionUtils]: 3 out of 16 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-08-27 15:18:24,658 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:24,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:24,659 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) [2021-08-27 15:18:24,660 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 [2021-08-27 15:18:24,661 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:18:24,683 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 15:18:24,683 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:18:24,684 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_1) = -2*ULTIMATE.start_main_~i~0 + 9*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_1 Supporting invariants [] [2021-08-27 15:18:24,702 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 [2021-08-27 15:18:24,724 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-08-27 15:18:24,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:24,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 15:18:24,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:18:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:24,791 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 15:18:24,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:18:24,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:18:24,835 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 15:18:24,837 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 25 states, 24 states have (on average 1.625) internal successors, (39), 24 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:24,873 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 25 states, 24 states have (on average 1.625) internal successors, (39), 24 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 50 states and 80 transitions. Complement of second has 8 states. [2021-08-27 15:18:24,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-27 15:18:24,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:24,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 40 transitions. [2021-08-27 15:18:24,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 2 letters. Loop has 2 letters. [2021-08-27 15:18:24,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:18:24,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 4 letters. Loop has 2 letters. [2021-08-27 15:18:24,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:18:24,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 2 letters. Loop has 4 letters. [2021-08-27 15:18:24,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:18:24,877 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 80 transitions. [2021-08-27 15:18:24,879 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-08-27 15:18:24,881 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 19 states and 28 transitions. [2021-08-27 15:18:24,882 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-08-27 15:18:24,882 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-08-27 15:18:24,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 28 transitions. [2021-08-27 15:18:24,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:18:24,883 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2021-08-27 15:18:24,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 28 transitions. [2021-08-27 15:18:24,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-08-27 15:18:24,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 18 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:24,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 28 transitions. [2021-08-27 15:18:24,898 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2021-08-27 15:18:24,898 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2021-08-27 15:18:24,898 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:18:24,898 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 28 transitions. [2021-08-27 15:18:24,899 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-08-27 15:18:24,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:18:24,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:18:24,899 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-08-27 15:18:24,899 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:18:24,899 INFO L791 eck$LassoCheckResult]: Stem: 164#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 165#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 173#L35-3 assume !(main_~i~0 < 5); 170#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 171#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 161#L39-3 [2021-08-27 15:18:24,899 INFO L793 eck$LassoCheckResult]: Loop: 161#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 163#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 161#L39-3 [2021-08-27 15:18:24,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:24,900 INFO L82 PathProgramCache]: Analyzing trace with hash 28696938, now seen corresponding path program 1 times [2021-08-27 15:18:24,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:24,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156424974] [2021-08-27 15:18:24,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:24,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:24,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:18:24,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:18:24,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156424974] [2021-08-27 15:18:24,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156424974] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:18:24,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:18:24,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 15:18:24,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993680374] [2021-08-27 15:18:24,934 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:18:24,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:24,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 1 times [2021-08-27 15:18:24,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:24,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746418503] [2021-08-27 15:18:24,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:24,935 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:24,943 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:24,948 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:24,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:18:24,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 15:18:24,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 15:18:24,987 INFO L87 Difference]: Start difference. First operand 19 states and 28 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:25,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:18:25,015 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2021-08-27 15:18:25,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 15:18:25,016 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2021-08-27 15:18:25,016 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-08-27 15:18:25,017 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 30 transitions. [2021-08-27 15:18:25,018 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-08-27 15:18:25,018 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-08-27 15:18:25,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 30 transitions. [2021-08-27 15:18:25,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:18:25,018 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2021-08-27 15:18:25,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 30 transitions. [2021-08-27 15:18:25,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2021-08-27 15:18:25,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.25) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:25,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2021-08-27 15:18:25,019 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-08-27 15:18:25,019 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-08-27 15:18:25,019 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 15:18:25,019 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2021-08-27 15:18:25,020 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-08-27 15:18:25,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:18:25,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:18:25,020 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:18:25,020 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:18:25,020 INFO L791 eck$LassoCheckResult]: Stem: 212#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 213#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 221#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 222#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 223#L35-3 assume !(main_~i~0 < 5); 218#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 219#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 208#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 209#L39-2 [2021-08-27 15:18:25,020 INFO L793 eck$LassoCheckResult]: Loop: 209#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 225#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 209#L39-2 [2021-08-27 15:18:25,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:25,021 INFO L82 PathProgramCache]: Analyzing trace with hash 265181045, now seen corresponding path program 1 times [2021-08-27 15:18:25,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:25,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201789731] [2021-08-27 15:18:25,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:25,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:25,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:18:25,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:18:25,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201789731] [2021-08-27 15:18:25,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201789731] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:18:25,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953735928] [2021-08-27 15:18:25,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:25,062 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 15:18:25,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:25,065 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 15:18:25,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-08-27 15:18:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:25,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 15:18:25,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:18:25,129 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 [2021-08-27 15:18:25,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:18:25,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953735928] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:18:25,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 15:18:25,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-08-27 15:18:25,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495900580] [2021-08-27 15:18:25,140 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:18:25,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:25,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 2 times [2021-08-27 15:18:25,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:25,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701827751] [2021-08-27 15:18:25,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:25,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:25,144 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:25,147 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:25,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:18:25,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 15:18:25,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-27 15:18:25,179 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:25,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:18:25,216 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2021-08-27 15:18:25,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 15:18:25,216 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 37 transitions. [2021-08-27 15:18:25,217 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-08-27 15:18:25,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 37 transitions. [2021-08-27 15:18:25,218 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-08-27 15:18:25,218 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-08-27 15:18:25,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 37 transitions. [2021-08-27 15:18:25,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:18:25,218 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2021-08-27 15:18:25,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 37 transitions. [2021-08-27 15:18:25,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2021-08-27 15:18:25,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:25,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2021-08-27 15:18:25,220 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-08-27 15:18:25,220 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-08-27 15:18:25,220 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-27 15:18:25,220 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2021-08-27 15:18:25,220 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-08-27 15:18:25,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:18:25,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:18:25,221 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-08-27 15:18:25,221 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:18:25,221 INFO L791 eck$LassoCheckResult]: Stem: 291#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 292#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 300#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 301#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 302#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 303#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 308#L35-3 assume !(main_~i~0 < 5); 297#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 298#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 304#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 306#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 287#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 288#L39-2 [2021-08-27 15:18:25,221 INFO L793 eck$LassoCheckResult]: Loop: 288#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 310#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 288#L39-2 [2021-08-27 15:18:25,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:25,222 INFO L82 PathProgramCache]: Analyzing trace with hash 780717205, now seen corresponding path program 1 times [2021-08-27 15:18:25,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:25,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353498204] [2021-08-27 15:18:25,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:25,222 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:25,251 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-27 15:18:25,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:18:25,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353498204] [2021-08-27 15:18:25,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353498204] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:18:25,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005048347] [2021-08-27 15:18:25,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:25,252 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 15:18:25,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:25,253 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 15:18:25,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-08-27 15:18:25,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:25,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 15:18:25,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:18:25,351 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-27 15:18:25,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005048347] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:18:25,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 15:18:25,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-08-27 15:18:25,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083247351] [2021-08-27 15:18:25,352 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:18:25,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:25,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 3 times [2021-08-27 15:18:25,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:25,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824715678] [2021-08-27 15:18:25,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:25,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:25,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:25,355 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:25,358 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:25,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:18:25,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 15:18:25,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-27 15:18:25,392 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. cyclomatic complexity: 10 Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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) [2021-08-27 15:18:25,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:18:25,433 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2021-08-27 15:18:25,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 15:18:25,433 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 44 transitions. [2021-08-27 15:18:25,434 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-08-27 15:18:25,434 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 44 transitions. [2021-08-27 15:18:25,434 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-08-27 15:18:25,434 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-08-27 15:18:25,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 44 transitions. [2021-08-27 15:18:25,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:18:25,435 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 44 transitions. [2021-08-27 15:18:25,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 44 transitions. [2021-08-27 15:18:25,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2021-08-27 15:18:25,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 27 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) [2021-08-27 15:18:25,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2021-08-27 15:18:25,437 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-08-27 15:18:25,437 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-08-27 15:18:25,437 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-27 15:18:25,437 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 33 transitions. [2021-08-27 15:18:25,437 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-08-27 15:18:25,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:18:25,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:18:25,438 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 1, 1, 1, 1, 1] [2021-08-27 15:18:25,438 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:18:25,438 INFO L791 eck$LassoCheckResult]: Stem: 393#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 394#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 402#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 403#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 409#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 416#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 404#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 405#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 413#L35-3 assume !(main_~i~0 < 5); 399#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 400#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 389#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 390#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 407#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 415#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 414#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 412#L39-2 [2021-08-27 15:18:25,438 INFO L793 eck$LassoCheckResult]: Loop: 412#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 411#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 412#L39-2 [2021-08-27 15:18:25,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:25,438 INFO L82 PathProgramCache]: Analyzing trace with hash 2111137973, now seen corresponding path program 2 times [2021-08-27 15:18:25,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:25,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334470951] [2021-08-27 15:18:25,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:25,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:25,473 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-27 15:18:25,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:18:25,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334470951] [2021-08-27 15:18:25,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334470951] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:18:25,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879708053] [2021-08-27 15:18:25,474 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 15:18:25,474 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 15:18:25,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:25,477 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 15:18:25,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-08-27 15:18:25,529 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 15:18:25,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 15:18:25,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 15:18:25,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:18:25,574 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-27 15:18:25,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879708053] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:18:25,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 15:18:25,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-08-27 15:18:25,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796562835] [2021-08-27 15:18:25,577 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:18:25,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:25,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 4 times [2021-08-27 15:18:25,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:25,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321338568] [2021-08-27 15:18:25,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:25,580 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:25,584 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:25,589 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:25,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:18:25,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 15:18:25,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-27 15:18:25,626 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. cyclomatic complexity: 10 Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:25,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:18:25,675 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2021-08-27 15:18:25,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 15:18:25,675 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 51 transitions. [2021-08-27 15:18:25,678 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-08-27 15:18:25,680 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 42 states and 51 transitions. [2021-08-27 15:18:25,680 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-08-27 15:18:25,680 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2021-08-27 15:18:25,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 51 transitions. [2021-08-27 15:18:25,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:18:25,681 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 51 transitions. [2021-08-27 15:18:25,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 51 transitions. [2021-08-27 15:18:25,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2021-08-27 15:18:25,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.15625) internal successors, (37), 31 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:25,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2021-08-27 15:18:25,685 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 37 transitions. [2021-08-27 15:18:25,685 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 37 transitions. [2021-08-27 15:18:25,685 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-08-27 15:18:25,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 37 transitions. [2021-08-27 15:18:25,686 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-08-27 15:18:25,686 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:18:25,686 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:18:25,687 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 1, 1, 1, 1, 1] [2021-08-27 15:18:25,687 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:18:25,687 INFO L791 eck$LassoCheckResult]: Stem: 518#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 519#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 527#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 528#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 529#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 530#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 545#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 544#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 543#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 538#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 537#L35-3 assume !(main_~i~0 < 5); 524#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 525#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 514#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 515#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 532#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 542#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 541#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 540#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 539#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 536#L39-2 [2021-08-27 15:18:25,687 INFO L793 eck$LassoCheckResult]: Loop: 536#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 535#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 536#L39-2 [2021-08-27 15:18:25,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:25,688 INFO L82 PathProgramCache]: Analyzing trace with hash 213314517, now seen corresponding path program 3 times [2021-08-27 15:18:25,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:25,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901495105] [2021-08-27 15:18:25,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:25,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:25,747 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-08-27 15:18:25,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:18:25,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901495105] [2021-08-27 15:18:25,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901495105] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:18:25,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761147946] [2021-08-27 15:18:25,748 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 15:18:25,748 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 15:18:25,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:25,756 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 15:18:25,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-08-27 15:18:25,820 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-08-27 15:18:25,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 15:18:25,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 15:18:25,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:18:25,880 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-08-27 15:18:25,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761147946] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:18:25,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 15:18:25,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-08-27 15:18:25,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484245209] [2021-08-27 15:18:25,881 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:18:25,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:25,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 5 times [2021-08-27 15:18:25,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:25,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206591331] [2021-08-27 15:18:25,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:25,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:25,884 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:25,886 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:25,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:18:25,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 15:18:25,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-27 15:18:25,927 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. cyclomatic complexity: 10 Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:25,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:18:25,986 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2021-08-27 15:18:25,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 15:18:25,987 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 56 transitions. [2021-08-27 15:18:25,988 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-08-27 15:18:25,989 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 46 states and 56 transitions. [2021-08-27 15:18:25,990 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-08-27 15:18:25,990 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-08-27 15:18:25,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 56 transitions. [2021-08-27 15:18:25,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:18:25,991 INFO L681 BuchiCegarLoop]: Abstraction has 46 states and 56 transitions. [2021-08-27 15:18:25,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 56 transitions. [2021-08-27 15:18:25,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2021-08-27 15:18:25,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 35 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:25,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2021-08-27 15:18:25,993 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 41 transitions. [2021-08-27 15:18:25,993 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 41 transitions. [2021-08-27 15:18:25,993 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-08-27 15:18:25,993 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 41 transitions. [2021-08-27 15:18:25,993 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-08-27 15:18:25,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:18:25,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:18:25,994 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 4, 1, 1, 1, 1, 1] [2021-08-27 15:18:25,994 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:18:25,994 INFO L791 eck$LassoCheckResult]: Stem: 664#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 665#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 673#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 674#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 675#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 676#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 695#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 694#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 693#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 692#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 691#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 689#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 688#L35-3 assume !(main_~i~0 < 5); 670#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 671#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 662#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 663#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 678#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 690#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 687#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 686#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 685#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 684#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 683#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 682#L39-2 [2021-08-27 15:18:25,994 INFO L793 eck$LassoCheckResult]: Loop: 682#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 681#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 682#L39-2 [2021-08-27 15:18:25,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:25,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1212159477, now seen corresponding path program 4 times [2021-08-27 15:18:25,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:25,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400784019] [2021-08-27 15:18:25,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:25,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:26,006 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:26,030 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:26,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:26,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 6 times [2021-08-27 15:18:26,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:26,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962168698] [2021-08-27 15:18:26,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:26,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:26,038 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:26,041 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:26,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:26,042 INFO L82 PathProgramCache]: Analyzing trace with hash 949121171, now seen corresponding path program 5 times [2021-08-27 15:18:26,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:26,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895922076] [2021-08-27 15:18:26,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:26,043 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:26,090 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-08-27 15:18:26,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:18:26,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895922076] [2021-08-27 15:18:26,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895922076] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:18:26,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085308381] [2021-08-27 15:18:26,091 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 15:18:26,091 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 15:18:26,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:26,092 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 15:18:26,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-08-27 15:18:26,209 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-08-27 15:18:26,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 15:18:26,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 15:18:26,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:18:26,296 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-08-27 15:18:26,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085308381] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:18:26,296 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 15:18:26,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2021-08-27 15:18:26,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893670749] [2021-08-27 15:18:26,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:18:26,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 15:18:26,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2021-08-27 15:18:26,329 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. cyclomatic complexity: 10 Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:26,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:18:26,424 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2021-08-27 15:18:26,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 15:18:26,425 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 57 transitions. [2021-08-27 15:18:26,427 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-08-27 15:18:26,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 48 states and 57 transitions. [2021-08-27 15:18:26,428 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2021-08-27 15:18:26,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2021-08-27 15:18:26,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 57 transitions. [2021-08-27 15:18:26,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:18:26,429 INFO L681 BuchiCegarLoop]: Abstraction has 48 states and 57 transitions. [2021-08-27 15:18:26,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 57 transitions. [2021-08-27 15:18:26,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 36. [2021-08-27 15:18:26,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 35 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:26,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2021-08-27 15:18:26,434 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 39 transitions. [2021-08-27 15:18:26,434 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 39 transitions. [2021-08-27 15:18:26,434 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-08-27 15:18:26,434 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 39 transitions. [2021-08-27 15:18:26,434 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-08-27 15:18:26,434 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:18:26,434 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:18:26,435 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:18:26,435 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:18:26,435 INFO L791 eck$LassoCheckResult]: Stem: 837#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 838#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 846#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 847#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 851#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 868#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 867#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 866#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 865#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 864#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 863#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 862#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 860#L35-3 assume !(main_~i~0 < 5); 843#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 844#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 833#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 834#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 849#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 861#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 859#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 858#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 857#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 856#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 855#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 854#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 853#L39-3 assume !(main_~i~0 < 5); 852#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 848#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 839#L44-3 [2021-08-27 15:18:26,436 INFO L793 eck$LassoCheckResult]: Loop: 839#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 840#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 839#L44-3 [2021-08-27 15:18:26,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:26,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1572377782, now seen corresponding path program 1 times [2021-08-27 15:18:26,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:26,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139631089] [2021-08-27 15:18:26,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:26,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:26,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:26,463 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:26,475 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:26,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:26,476 INFO L82 PathProgramCache]: Analyzing trace with hash 2406, now seen corresponding path program 1 times [2021-08-27 15:18:26,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:26,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145159126] [2021-08-27 15:18:26,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:26,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:26,478 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:26,480 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:26,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:26,480 INFO L82 PathProgramCache]: Analyzing trace with hash -773438245, now seen corresponding path program 1 times [2021-08-27 15:18:26,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:26,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905849354] [2021-08-27 15:18:26,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:26,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:26,490 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:26,503 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:29,458 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:18:29,458 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:18:29,458 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:18:29,458 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:18:29,458 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:18:29,458 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:29,458 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:18:29,458 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:18:29,458 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration8_Lasso [2021-08-27 15:18:29,458 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:18:29,459 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:18:29,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:29,999 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:18:29,999 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:18:29,999 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:29,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,002 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) [2021-08-27 15:18:30,002 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 [2021-08-27 15:18:30,042 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:30,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:30,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:30,059 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,076 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 [2021-08-27 15:18:30,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,078 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) [2021-08-27 15:18:30,079 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 [2021-08-27 15:18:30,080 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,086 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:30,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,087 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:30,087 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:30,098 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-08-27 15:18:30,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,114 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) [2021-08-27 15:18:30,114 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 [2021-08-27 15:18:30,115 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,123 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:30,123 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:30,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-08-27 15:18:30,141 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,141 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) [2021-08-27 15:18:30,142 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 [2021-08-27 15:18:30,143 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,149 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:30,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,150 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:30,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:30,152 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,167 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-08-27 15:18:30,168 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,168 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) [2021-08-27 15:18:30,169 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 [2021-08-27 15:18:30,170 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,176 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:30,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,177 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:30,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:30,178 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,202 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 [2021-08-27 15:18:30,202 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,203 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) [2021-08-27 15:18:30,204 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 [2021-08-27 15:18:30,205 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:30,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,212 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:30,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:30,232 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,250 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 [2021-08-27 15:18:30,250 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,251 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) [2021-08-27 15:18:30,252 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 [2021-08-27 15:18:30,253 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:30,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:30,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:30,269 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,284 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 [2021-08-27 15:18:30,284 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,286 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) [2021-08-27 15:18:30,286 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 [2021-08-27 15:18:30,287 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,294 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:30,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,294 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:30,295 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:30,295 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-08-27 15:18:30,311 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,312 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) [2021-08-27 15:18:30,312 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 [2021-08-27 15:18:30,313 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,319 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:30,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,320 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:30,320 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:30,328 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,346 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 [2021-08-27 15:18:30,346 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,347 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) [2021-08-27 15:18:30,348 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 [2021-08-27 15:18:30,349 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:30,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:30,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:30,365 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,390 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 [2021-08-27 15:18:30,391 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,391 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) [2021-08-27 15:18:30,395 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:30,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,403 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:30,403 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:30,405 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 [2021-08-27 15:18:30,413 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,431 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 [2021-08-27 15:18:30,431 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,432 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) [2021-08-27 15:18:30,433 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 [2021-08-27 15:18:30,434 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,443 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:30,443 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:30,452 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,468 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 [2021-08-27 15:18:30,468 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,469 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) [2021-08-27 15:18:30,470 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 [2021-08-27 15:18:30,471 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,477 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:30,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,477 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,477 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:30,477 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:30,492 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,510 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 [2021-08-27 15:18:30,511 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,511 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) [2021-08-27 15:18:30,521 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 [2021-08-27 15:18:30,526 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,534 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:30,534 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:30,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,570 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 [2021-08-27 15:18:30,571 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,571 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) [2021-08-27 15:18:30,574 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 [2021-08-27 15:18:30,575 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 [2021-08-27 15:18:30,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:30,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:30,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:30,582 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-08-27 15:18:30,597 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,597 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) [2021-08-27 15:18:30,598 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 [2021-08-27 15:18:30,599 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,605 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:30,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:30,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:30,607 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:30,624 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,625 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) [2021-08-27 15:18:30,627 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 [2021-08-27 15:18:30,628 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:30,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,634 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:30,634 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:30,640 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,655 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-08-27 15:18:30,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,661 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) [2021-08-27 15:18:30,661 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 [2021-08-27 15:18:30,663 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:30,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,674 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:30,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:30,675 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-08-27 15:18:30,691 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,691 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) [2021-08-27 15:18:30,692 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 [2021-08-27 15:18:30,693 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,700 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:30,700 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:30,702 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,717 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 [2021-08-27 15:18:30,718 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,718 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) [2021-08-27 15:18:30,719 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 [2021-08-27 15:18:30,720 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,727 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:30,727 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:30,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,748 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 [2021-08-27 15:18:30,749 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,749 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:30,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-08-27 15:18:30,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,759 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:30,759 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:30,761 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:30,776 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,776 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:30,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-08-27 15:18:30,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,785 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:30,785 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:30,788 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-08-27 15:18:30,803 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,804 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:30,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-08-27 15:18:30,806 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,814 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:30,814 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:30,817 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,832 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-08-27 15:18:30,832 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,833 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:30,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-08-27 15:18:30,834 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,842 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:30,842 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:30,844 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-08-27 15:18:30,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,860 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:30,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-08-27 15:18:30,862 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:30,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,868 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:30,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:30,869 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-08-27 15:18:30,884 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,885 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:30,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-08-27 15:18:30,886 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,894 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:30,894 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:30,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-08-27 15:18:30,921 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,922 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:30,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-08-27 15:18:30,924 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,932 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:30,932 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:30,944 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:30,959 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-08-27 15:18:30,959 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:30,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:30,960 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:30,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-08-27 15:18:30,961 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:30,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:30,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:30,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:30,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:30,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:30,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:30,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:30,992 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:31,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-08-27 15:18:31,008 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:31,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:31,008 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:31,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-08-27 15:18:31,010 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:31,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:31,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:31,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:31,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:31,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:31,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:31,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:31,018 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:31,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-08-27 15:18:31,034 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:31,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:31,034 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:31,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-08-27 15:18:31,036 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:31,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:31,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:31,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:31,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:31,044 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:31,044 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:31,056 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:31,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-08-27 15:18:31,071 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:31,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:31,072 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:31,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-08-27 15:18:31,074 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:31,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:31,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:31,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:31,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:31,081 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:31,081 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:31,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:31,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-08-27 15:18:31,108 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:31,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:31,109 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:31,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-08-27 15:18:31,111 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:31,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:31,117 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:31,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:31,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:31,117 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:31,117 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:31,117 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:31,119 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:31,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-08-27 15:18:31,134 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:31,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:31,134 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:31,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-08-27 15:18:31,136 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 [2021-08-27 15:18:31,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:31,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:31,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:31,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:31,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:31,142 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:31,143 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:31,143 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:31,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-08-27 15:18:31,158 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:31,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:31,159 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:31,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-08-27 15:18:31,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:31,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:31,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:31,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:31,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:31,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:31,167 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:31,167 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:31,168 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:31,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-08-27 15:18:31,182 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:31,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:31,183 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:31,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-08-27 15:18:31,184 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 [2021-08-27 15:18:31,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:31,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:31,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:31,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:31,193 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:31,194 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:31,209 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:18:31,217 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-08-27 15:18:31,217 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 9 variables to zero. [2021-08-27 15:18:31,217 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:31,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:31,218 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:31,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-08-27 15:18:31,219 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:18:31,226 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 15:18:31,226 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:18:31,226 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_2, ULTIMATE.start_main_~#string_A~0.offset, ULTIMATE.start_main_~nc_A~0) = 1*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_2 - 1*ULTIMATE.start_main_~#string_A~0.offset - 1*ULTIMATE.start_main_~nc_A~0 Supporting invariants [] [2021-08-27 15:18:31,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:31,279 INFO L297 tatePredicateManager]: 23 out of 23 supporting invariants were superfluous and have been removed [2021-08-27 15:18:31,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:31,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 15:18:31,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:18:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:31,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 15:18:31,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:18:31,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:18:31,444 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 15:18:31,445 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 39 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2021-08-27 15:18:31,456 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 39 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) Result 44 states and 51 transitions. Complement of second has 4 states. [2021-08-27 15:18:31,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 15:18:31,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2021-08-27 15:18:31,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2021-08-27 15:18:31,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 28 letters. Loop has 2 letters. [2021-08-27 15:18:31,458 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:18:31,458 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 30 letters. Loop has 2 letters. [2021-08-27 15:18:31,458 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:18:31,458 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 28 letters. Loop has 4 letters. [2021-08-27 15:18:31,458 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:18:31,458 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 51 transitions. [2021-08-27 15:18:31,459 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-08-27 15:18:31,459 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 38 states and 42 transitions. [2021-08-27 15:18:31,459 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2021-08-27 15:18:31,459 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-08-27 15:18:31,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 42 transitions. [2021-08-27 15:18:31,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:18:31,459 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 42 transitions. [2021-08-27 15:18:31,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 42 transitions. [2021-08-27 15:18:31,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-08-27 15:18:31,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.105263157894737) internal successors, (42), 37 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:31,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2021-08-27 15:18:31,460 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 42 transitions. [2021-08-27 15:18:31,460 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 42 transitions. [2021-08-27 15:18:31,460 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-08-27 15:18:31,460 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 42 transitions. [2021-08-27 15:18:31,461 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-08-27 15:18:31,461 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:18:31,461 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:18:31,461 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:18:31,461 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:18:31,461 INFO L791 eck$LassoCheckResult]: Stem: 1119#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1120#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1130#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1137#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1131#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1132#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1152#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1151#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1150#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1149#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1148#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1147#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1146#L35-3 assume !(main_~i~0 < 5); 1127#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1128#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1115#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1116#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1134#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1145#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1144#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1143#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1142#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1141#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1140#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1139#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1138#L39-3 assume !(main_~i~0 < 5); 1136#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1133#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1121#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1123#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1125#L44-4 main_~nc_B~0 := 0; 1126#L48-3 [2021-08-27 15:18:31,461 INFO L793 eck$LassoCheckResult]: Loop: 1126#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1135#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 1126#L48-3 [2021-08-27 15:18:31,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:31,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1793218173, now seen corresponding path program 1 times [2021-08-27 15:18:31,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:31,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294582267] [2021-08-27 15:18:31,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:31,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:31,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:31,479 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:31,502 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:31,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:31,502 INFO L82 PathProgramCache]: Analyzing trace with hash 2854, now seen corresponding path program 1 times [2021-08-27 15:18:31,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:31,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349129353] [2021-08-27 15:18:31,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:31,502 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:31,504 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:31,506 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:31,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:31,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1000780450, now seen corresponding path program 1 times [2021-08-27 15:18:31,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:31,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263040025] [2021-08-27 15:18:31,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:31,507 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:31,522 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:31,546 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:35,784 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:18:35,784 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:18:35,784 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:18:35,784 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:18:35,784 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:18:35,784 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:35,784 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:18:35,784 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:18:35,784 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration9_Lasso [2021-08-27 15:18:35,784 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:18:35,784 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:18:35,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:36,370 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:18:36,371 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:18:36,371 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:36,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:36,374 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:36,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-08-27 15:18:36,376 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:36,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:36,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:36,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:36,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:36,383 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:36,383 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:36,408 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:36,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-08-27 15:18:36,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:36,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:36,424 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:36,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-08-27 15:18:36,426 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:36,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:36,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:36,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:36,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:36,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:36,434 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:36,437 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:36,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-08-27 15:18:36,453 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:36,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:36,453 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:36,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-08-27 15:18:36,455 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:36,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:36,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:36,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:36,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:36,462 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:36,462 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:36,464 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:36,479 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-08-27 15:18:36,479 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:36,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:36,480 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:36,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-08-27 15:18:36,482 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:36,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:36,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:36,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:36,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:36,489 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:36,489 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:36,491 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:36,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-08-27 15:18:36,506 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:36,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:36,507 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:36,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-08-27 15:18:36,508 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:36,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:36,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:36,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:36,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:36,521 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:36,521 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:36,544 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:18:36,566 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2021-08-27 15:18:36,566 INFO L444 ModelExtractionUtils]: 2 out of 28 variables were initially zero. Simplification set additionally 22 variables to zero. [2021-08-27 15:18:36,566 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:36,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:36,569 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:36,581 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:18:36,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-08-27 15:18:36,608 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-08-27 15:18:36,608 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:18:36,608 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~nc_B~0, v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_3) = -1*ULTIMATE.start_main_~nc_B~0 + 1*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_3 Supporting invariants [1*ULTIMATE.start_main_~#string_B~0.offset >= 0] [2021-08-27 15:18:36,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:36,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:36,681 INFO L297 tatePredicateManager]: 16 out of 17 supporting invariants were superfluous and have been removed [2021-08-27 15:18:36,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:36,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 15:18:36,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:18:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:37,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 15:18:37,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:18:37,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:18:37,038 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 [2021-08-27 15:18:37,039 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 42 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2021-08-27 15:18:37,062 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 42 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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 43 states and 50 transitions. Complement of second has 5 states. [2021-08-27 15:18:37,063 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 [2021-08-27 15:18:37,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2021-08-27 15:18:37,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2021-08-27 15:18:37,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 31 letters. Loop has 2 letters. [2021-08-27 15:18:37,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:18:37,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 33 letters. Loop has 2 letters. [2021-08-27 15:18:37,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:18:37,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 31 letters. Loop has 4 letters. [2021-08-27 15:18:37,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:18:37,063 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 50 transitions. [2021-08-27 15:18:37,064 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:18:37,064 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 40 states and 45 transitions. [2021-08-27 15:18:37,064 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2021-08-27 15:18:37,064 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-08-27 15:18:37,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 45 transitions. [2021-08-27 15:18:37,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:18:37,064 INFO L681 BuchiCegarLoop]: Abstraction has 40 states and 45 transitions. [2021-08-27 15:18:37,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 45 transitions. [2021-08-27 15:18:37,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-08-27 15:18:37,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.125) internal successors, (45), 39 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:37,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2021-08-27 15:18:37,065 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 45 transitions. [2021-08-27 15:18:37,065 INFO L587 BuchiCegarLoop]: Abstraction has 40 states and 45 transitions. [2021-08-27 15:18:37,065 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-08-27 15:18:37,065 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 45 transitions. [2021-08-27 15:18:37,066 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:18:37,066 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:18:37,066 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:18:37,066 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:18:37,066 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:18:37,066 INFO L791 eck$LassoCheckResult]: Stem: 1394#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1395#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1405#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1413#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1406#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1407#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1429#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1428#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1427#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1426#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1425#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1424#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1423#L35-3 assume !(main_~i~0 < 5); 1402#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1403#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1390#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1391#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1409#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1422#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1421#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1420#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1419#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1418#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1417#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1416#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1415#L39-3 assume !(main_~i~0 < 5); 1414#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1408#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1396#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1398#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1400#L44-4 main_~nc_B~0 := 0; 1401#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1410#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 1392#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 1393#L57-2 [2021-08-27 15:18:37,066 INFO L793 eck$LassoCheckResult]: Loop: 1393#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 1404#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 1393#L57-2 [2021-08-27 15:18:37,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:37,067 INFO L82 PathProgramCache]: Analyzing trace with hash 959422888, now seen corresponding path program 1 times [2021-08-27 15:18:37,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:37,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086649601] [2021-08-27 15:18:37,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:37,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:37,075 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:37,084 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:37,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:37,085 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 1 times [2021-08-27 15:18:37,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:37,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937490502] [2021-08-27 15:18:37,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:37,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:37,087 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:37,089 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:37,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:37,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1412570677, now seen corresponding path program 1 times [2021-08-27 15:18:37,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:37,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689396062] [2021-08-27 15:18:37,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:37,089 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:37,116 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-08-27 15:18:37,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:18:37,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689396062] [2021-08-27 15:18:37,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689396062] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:18:37,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:18:37,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-27 15:18:37,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299237363] [2021-08-27 15:18:37,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:18:37,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 15:18:37,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 15:18:37,193 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:37,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:18:37,206 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2021-08-27 15:18:37,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 15:18:37,206 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 55 transitions. [2021-08-27 15:18:37,207 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:18:37,207 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 41 states and 45 transitions. [2021-08-27 15:18:37,207 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-08-27 15:18:37,207 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-08-27 15:18:37,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 45 transitions. [2021-08-27 15:18:37,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:18:37,207 INFO L681 BuchiCegarLoop]: Abstraction has 41 states and 45 transitions. [2021-08-27 15:18:37,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 45 transitions. [2021-08-27 15:18:37,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2021-08-27 15:18:37,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.1) internal successors, (44), 39 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:37,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2021-08-27 15:18:37,208 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 44 transitions. [2021-08-27 15:18:37,208 INFO L587 BuchiCegarLoop]: Abstraction has 40 states and 44 transitions. [2021-08-27 15:18:37,208 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-08-27 15:18:37,208 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 44 transitions. [2021-08-27 15:18:37,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:18:37,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:18:37,209 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:18:37,209 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:18:37,209 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:18:37,209 INFO L791 eck$LassoCheckResult]: Stem: 1492#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1493#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1503#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1511#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1504#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1505#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1527#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1526#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1525#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1524#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1523#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1522#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1521#L35-3 assume !(main_~i~0 < 5); 1500#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1501#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1490#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1491#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1507#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1520#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1519#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1518#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1517#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1516#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1515#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1514#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1513#L39-3 assume !(main_~i~0 < 5); 1512#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1506#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1494#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1495#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 1496#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1497#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1498#L44-4 main_~nc_B~0 := 0; 1499#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1508#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 1488#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 1489#L57-2 [2021-08-27 15:18:37,209 INFO L793 eck$LassoCheckResult]: Loop: 1489#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 1502#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 1489#L57-2 [2021-08-27 15:18:37,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:37,209 INFO L82 PathProgramCache]: Analyzing trace with hash 94364173, now seen corresponding path program 1 times [2021-08-27 15:18:37,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:37,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017303301] [2021-08-27 15:18:37,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:37,210 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:37,238 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-08-27 15:18:37,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:18:37,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017303301] [2021-08-27 15:18:37,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017303301] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:18:37,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435479855] [2021-08-27 15:18:37,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:37,239 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 15:18:37,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:37,240 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 15:18:37,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2021-08-27 15:18:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:37,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 15:18:37,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:18:37,459 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-08-27 15:18:37,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435479855] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:18:37,459 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 15:18:37,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2021-08-27 15:18:37,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741123208] [2021-08-27 15:18:37,459 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:18:37,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:37,459 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 2 times [2021-08-27 15:18:37,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:37,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914976181] [2021-08-27 15:18:37,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:37,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:37,462 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:37,464 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:37,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:18:37,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 15:18:37,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-27 15:18:37,522 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. cyclomatic complexity: 7 Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:37,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:18:37,546 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2021-08-27 15:18:37,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 15:18:37,546 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 47 transitions. [2021-08-27 15:18:37,546 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:18:37,547 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 42 states and 45 transitions. [2021-08-27 15:18:37,547 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-08-27 15:18:37,547 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-08-27 15:18:37,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 45 transitions. [2021-08-27 15:18:37,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:18:37,547 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 45 transitions. [2021-08-27 15:18:37,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 45 transitions. [2021-08-27 15:18:37,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2021-08-27 15:18:37,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.075) internal successors, (43), 39 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:37,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2021-08-27 15:18:37,548 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 43 transitions. [2021-08-27 15:18:37,548 INFO L587 BuchiCegarLoop]: Abstraction has 40 states and 43 transitions. [2021-08-27 15:18:37,548 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-08-27 15:18:37,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 43 transitions. [2021-08-27 15:18:37,548 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:18:37,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:18:37,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:18:37,549 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:18:37,549 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:18:37,549 INFO L791 eck$LassoCheckResult]: Stem: 1691#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1692#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1702#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1703#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1710#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1726#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1725#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1724#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1723#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1722#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1721#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1720#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1719#L35-3 assume !(main_~i~0 < 5); 1699#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1700#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1687#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1688#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1705#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1718#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1717#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1716#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1715#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1714#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1713#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1712#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1711#L39-3 assume !(main_~i~0 < 5); 1709#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1704#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1693#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1694#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 1695#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1696#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1697#L44-4 main_~nc_B~0 := 0; 1698#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1707#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 1708#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1706#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 1689#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 1690#L57-2 [2021-08-27 15:18:37,549 INFO L793 eck$LassoCheckResult]: Loop: 1690#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 1701#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 1690#L57-2 [2021-08-27 15:18:37,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:37,549 INFO L82 PathProgramCache]: Analyzing trace with hash 489706120, now seen corresponding path program 1 times [2021-08-27 15:18:37,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:37,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674531991] [2021-08-27 15:18:37,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:37,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:37,560 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:37,573 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:37,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:37,574 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 3 times [2021-08-27 15:18:37,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:37,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881771149] [2021-08-27 15:18:37,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:37,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:37,576 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:37,577 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:37,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:37,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1838818645, now seen corresponding path program 1 times [2021-08-27 15:18:37,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:37,578 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074469361] [2021-08-27 15:18:37,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:37,578 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:37,602 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:37,619 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:42,954 WARN L207 SmtUtils]: Spent 5.27 s on a formula simplification. DAG size of input: 296 DAG size of output: 223 [2021-08-27 15:18:43,618 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:18:43,619 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:18:43,619 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:18:43,619 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:18:43,619 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:18:43,619 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:43,619 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:18:43,619 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:18:43,619 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration12_Lasso [2021-08-27 15:18:43,619 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:18:43,619 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:18:43,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:43,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:43,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:43,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:43,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:44,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:44,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:44,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:44,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:44,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:44,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:44,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:44,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:44,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:44,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:44,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:44,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:44,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:44,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:44,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:44,562 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:18:44,564 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:18:44,564 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:44,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:44,565 INFO L229 MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:44,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-08-27 15:18:44,566 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:44,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:44,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:44,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:44,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:44,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:44,573 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:44,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:44,574 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:44,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:44,589 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:44,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:44,590 INFO L229 MonitoredProcess]: Starting monitored process 74 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:44,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-08-27 15:18:44,592 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:44,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:44,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:44,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:44,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:44,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:44,601 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:44,601 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:44,603 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:44,617 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-08-27 15:18:44,618 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:44,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:44,618 INFO L229 MonitoredProcess]: Starting monitored process 75 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:44,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-08-27 15:18:44,621 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:44,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:44,627 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:44,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:44,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:44,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:44,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:44,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:44,628 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:44,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2021-08-27 15:18:44,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:44,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:44,644 INFO L229 MonitoredProcess]: Starting monitored process 76 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:44,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-08-27 15:18:44,645 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:44,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:44,652 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:44,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:44,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:44,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:44,652 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:44,652 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:44,653 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:44,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:44,668 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:44,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:44,669 INFO L229 MonitoredProcess]: Starting monitored process 77 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:44,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-08-27 15:18:44,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:44,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:44,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:44,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:44,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:44,678 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:44,678 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:44,681 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:44,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2021-08-27 15:18:44,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:44,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:44,696 INFO L229 MonitoredProcess]: Starting monitored process 78 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:44,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-08-27 15:18:44,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:44,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:44,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:44,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:44,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:44,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:44,705 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:44,705 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:44,720 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:44,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2021-08-27 15:18:44,736 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:44,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:44,737 INFO L229 MonitoredProcess]: Starting monitored process 79 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:44,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-08-27 15:18:44,739 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:44,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:44,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:44,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:44,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:44,746 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:44,746 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:44,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:44,784 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2021-08-27 15:18:44,784 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:44,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:44,785 INFO L229 MonitoredProcess]: Starting monitored process 80 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:44,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-08-27 15:18:44,786 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:44,792 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:44,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:44,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:44,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:44,794 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:44,794 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:44,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:44,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:44,818 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:44,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:44,819 INFO L229 MonitoredProcess]: Starting monitored process 81 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:44,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-08-27 15:18:44,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:44,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:44,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:44,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:44,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:44,828 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:44,828 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:44,830 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:44,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:44,846 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:44,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:44,846 INFO L229 MonitoredProcess]: Starting monitored process 82 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:44,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-08-27 15:18:44,848 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:44,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:44,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:44,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:44,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:44,855 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:44,855 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:44,857 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:44,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2021-08-27 15:18:44,872 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:44,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:44,873 INFO L229 MonitoredProcess]: Starting monitored process 83 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:44,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-08-27 15:18:44,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:44,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:44,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:44,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:44,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:44,882 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:44,882 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:44,884 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:44,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:44,900 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:44,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:44,900 INFO L229 MonitoredProcess]: Starting monitored process 84 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:44,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-08-27 15:18:44,902 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:44,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:44,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:44,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:44,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:44,916 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:44,916 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:44,926 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:18:44,953 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2021-08-27 15:18:44,953 INFO L444 ModelExtractionUtils]: 4 out of 31 variables were initially zero. Simplification set additionally 24 variables to zero. [2021-08-27 15:18:44,953 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:44,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:44,954 INFO L229 MonitoredProcess]: Starting monitored process 85 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:44,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-08-27 15:18:44,955 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:18:44,962 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 15:18:44,962 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:18:44,962 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_4, ULTIMATE.start_main_~j~0) = 1*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_4 - 2*ULTIMATE.start_main_~j~0 Supporting invariants [] [2021-08-27 15:18:44,978 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2021-08-27 15:18:45,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:45,061 INFO L297 tatePredicateManager]: 30 out of 32 supporting invariants were superfluous and have been removed [2021-08-27 15:18:45,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:45,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 15:18:45,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:18:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:45,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 15:18:45,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:18:45,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:18:45,541 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 2 loop predicates [2021-08-27 15:18:45,541 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 43 transitions. cyclomatic complexity: 6 Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:45,600 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 43 transitions. cyclomatic complexity: 6. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 54 states and 62 transitions. Complement of second has 10 states. [2021-08-27 15:18:45,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 5 stem states 1 non-accepting loop states 2 accepting loop states [2021-08-27 15:18:45,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:45,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 30 transitions. [2021-08-27 15:18:45,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 30 transitions. Stem has 38 letters. Loop has 2 letters. [2021-08-27 15:18:45,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:18:45,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 30 transitions. Stem has 40 letters. Loop has 2 letters. [2021-08-27 15:18:45,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:18:45,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 30 transitions. Stem has 38 letters. Loop has 4 letters. [2021-08-27 15:18:45,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:18:45,601 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 62 transitions. [2021-08-27 15:18:45,602 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-08-27 15:18:45,602 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 54 states and 62 transitions. [2021-08-27 15:18:45,602 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2021-08-27 15:18:45,602 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-08-27 15:18:45,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 62 transitions. [2021-08-27 15:18:45,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:18:45,602 INFO L681 BuchiCegarLoop]: Abstraction has 54 states and 62 transitions. [2021-08-27 15:18:45,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 62 transitions. [2021-08-27 15:18:45,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2021-08-27 15:18:45,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.14) internal successors, (57), 49 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:45,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2021-08-27 15:18:45,604 INFO L704 BuchiCegarLoop]: Abstraction has 50 states and 57 transitions. [2021-08-27 15:18:45,604 INFO L587 BuchiCegarLoop]: Abstraction has 50 states and 57 transitions. [2021-08-27 15:18:45,604 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-08-27 15:18:45,604 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 57 transitions. [2021-08-27 15:18:45,604 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-08-27 15:18:45,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:18:45,604 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:18:45,604 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:18:45,604 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:18:45,604 INFO L791 eck$LassoCheckResult]: Stem: 2076#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 2077#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 2089#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2090#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2098#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2121#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2120#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2119#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2118#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2112#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2111#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2110#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2109#L35-3 assume !(main_~i~0 < 5); 2084#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 2085#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 2074#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2075#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2092#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2117#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2115#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2113#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2108#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2106#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2105#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2104#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2103#L39-3 assume !(main_~i~0 < 5); 2099#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 2091#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 2078#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2079#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2080#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2081#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 2082#L44-4 main_~nc_B~0 := 0; 2083#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2095#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2096#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2093#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 2094#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 2107#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2100#L57 [2021-08-27 15:18:45,604 INFO L793 eck$LassoCheckResult]: Loop: 2100#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 2101#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2100#L57 [2021-08-27 15:18:45,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:45,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1998979383, now seen corresponding path program 1 times [2021-08-27 15:18:45,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:45,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356025161] [2021-08-27 15:18:45,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:45,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:45,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:45,619 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:45,636 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:45,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:45,636 INFO L82 PathProgramCache]: Analyzing trace with hash 3708, now seen corresponding path program 1 times [2021-08-27 15:18:45,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:45,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100145255] [2021-08-27 15:18:45,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:45,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:45,639 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:45,641 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:45,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:45,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1168803004, now seen corresponding path program 1 times [2021-08-27 15:18:45,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:45,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751295980] [2021-08-27 15:18:45,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:45,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:45,711 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-08-27 15:18:45,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:18:45,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751295980] [2021-08-27 15:18:45,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751295980] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:18:45,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138722070] [2021-08-27 15:18:45,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:45,712 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 15:18:45,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:45,713 INFO L229 MonitoredProcess]: Starting monitored process 86 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 15:18:45,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2021-08-27 15:18:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:45,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 15:18:45,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:18:46,014 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-08-27 15:18:46,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138722070] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:18:46,014 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 15:18:46,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2021-08-27 15:18:46,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889451720] [2021-08-27 15:18:46,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:18:46,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 15:18:46,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-27 15:18:46,088 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. cyclomatic complexity: 12 Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:46,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:18:46,209 INFO L93 Difference]: Finished difference Result 74 states and 83 transitions. [2021-08-27 15:18:46,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 15:18:46,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74 states and 83 transitions. [2021-08-27 15:18:46,211 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-08-27 15:18:46,212 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74 states to 53 states and 60 transitions. [2021-08-27 15:18:46,212 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2021-08-27 15:18:46,212 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2021-08-27 15:18:46,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 60 transitions. [2021-08-27 15:18:46,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:18:46,212 INFO L681 BuchiCegarLoop]: Abstraction has 53 states and 60 transitions. [2021-08-27 15:18:46,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 60 transitions. [2021-08-27 15:18:46,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2021-08-27 15:18:46,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.1346153846153846) internal successors, (59), 51 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:46,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2021-08-27 15:18:46,214 INFO L704 BuchiCegarLoop]: Abstraction has 52 states and 59 transitions. [2021-08-27 15:18:46,214 INFO L587 BuchiCegarLoop]: Abstraction has 52 states and 59 transitions. [2021-08-27 15:18:46,214 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-08-27 15:18:46,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 59 transitions. [2021-08-27 15:18:46,214 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-08-27 15:18:46,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:18:46,215 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:18:46,215 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:18:46,215 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:18:46,215 INFO L791 eck$LassoCheckResult]: Stem: 2347#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 2348#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 2361#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2364#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2372#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2393#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2392#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2391#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2390#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2389#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2388#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2387#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2386#L35-3 assume !(main_~i~0 < 5); 2355#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 2356#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 2365#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2367#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2345#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2346#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2385#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2384#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2382#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2380#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2378#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2376#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2375#L39-3 assume !(main_~i~0 < 5); 2373#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 2366#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 2349#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2350#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2351#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2352#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2363#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2362#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 2353#L44-4 main_~nc_B~0 := 0; 2354#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2371#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2383#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2381#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 2379#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 2377#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2358#L57 [2021-08-27 15:18:46,215 INFO L793 eck$LassoCheckResult]: Loop: 2358#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 2357#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2358#L57 [2021-08-27 15:18:46,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:46,216 INFO L82 PathProgramCache]: Analyzing trace with hash -454347388, now seen corresponding path program 2 times [2021-08-27 15:18:46,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:46,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126180061] [2021-08-27 15:18:46,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:46,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:46,265 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-08-27 15:18:46,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:18:46,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126180061] [2021-08-27 15:18:46,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126180061] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:18:46,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565376852] [2021-08-27 15:18:46,266 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 15:18:46,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 15:18:46,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:46,269 INFO L229 MonitoredProcess]: Starting monitored process 87 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 15:18:46,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2021-08-27 15:18:46,459 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 15:18:46,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 15:18:46,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 15:18:46,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:18:46,585 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-08-27 15:18:46,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565376852] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:18:46,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 15:18:46,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-08-27 15:18:46,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195162321] [2021-08-27 15:18:46,586 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:18:46,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:46,586 INFO L82 PathProgramCache]: Analyzing trace with hash 3708, now seen corresponding path program 2 times [2021-08-27 15:18:46,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:46,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023276863] [2021-08-27 15:18:46,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:46,586 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:46,589 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:46,591 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:46,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:18:46,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 15:18:46,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-08-27 15:18:46,678 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. cyclomatic complexity: 12 Second operand has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:46,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:18:46,713 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2021-08-27 15:18:46,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 15:18:46,714 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 51 transitions. [2021-08-27 15:18:46,714 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:18:46,715 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 46 states and 49 transitions. [2021-08-27 15:18:46,715 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-08-27 15:18:46,715 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-08-27 15:18:46,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 49 transitions. [2021-08-27 15:18:46,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:18:46,715 INFO L681 BuchiCegarLoop]: Abstraction has 46 states and 49 transitions. [2021-08-27 15:18:46,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 49 transitions. [2021-08-27 15:18:46,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2021-08-27 15:18:46,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 44 states have (on average 1.0681818181818181) internal successors, (47), 43 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:46,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2021-08-27 15:18:46,716 INFO L704 BuchiCegarLoop]: Abstraction has 44 states and 47 transitions. [2021-08-27 15:18:46,716 INFO L587 BuchiCegarLoop]: Abstraction has 44 states and 47 transitions. [2021-08-27 15:18:46,716 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-08-27 15:18:46,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 47 transitions. [2021-08-27 15:18:46,717 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:18:46,717 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:18:46,717 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:18:46,717 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:18:46,717 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:18:46,718 INFO L791 eck$LassoCheckResult]: Stem: 2580#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 2581#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 2591#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2594#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2602#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2619#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2618#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2617#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2616#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2615#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2614#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2613#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2612#L35-3 assume !(main_~i~0 < 5); 2588#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 2589#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 2578#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2579#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2596#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2611#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2610#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2609#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2608#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2607#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2606#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2605#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2604#L39-3 assume !(main_~i~0 < 5); 2603#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 2595#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 2582#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2583#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2584#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2585#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2593#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2592#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 2586#L44-4 main_~nc_B~0 := 0; 2587#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2600#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2601#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2598#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2599#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2597#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 2576#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 2577#L57-2 [2021-08-27 15:18:46,718 INFO L793 eck$LassoCheckResult]: Loop: 2577#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2590#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 2577#L57-2 [2021-08-27 15:18:46,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:46,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1199820568, now seen corresponding path program 2 times [2021-08-27 15:18:46,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:46,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540630244] [2021-08-27 15:18:46,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:46,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:46,728 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:46,740 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:46,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:46,741 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 4 times [2021-08-27 15:18:46,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:46,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093635583] [2021-08-27 15:18:46,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:46,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:46,744 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:46,746 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:46,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:46,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1976327925, now seen corresponding path program 2 times [2021-08-27 15:18:46,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:46,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697064541] [2021-08-27 15:18:46,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:46,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:46,767 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:46,783 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:52,539 WARN L207 SmtUtils]: Spent 5.69 s on a formula simplification. DAG size of input: 320 DAG size of output: 246 [2021-08-27 15:18:53,979 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:18:53,979 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:18:53,979 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:18:53,979 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:18:53,979 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:18:53,979 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:53,979 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:18:53,979 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:18:53,979 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration15_Lasso [2021-08-27 15:18:53,979 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:18:53,979 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:18:53,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:53,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:53,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:54,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:54,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:54,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:54,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:54,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:54,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:54,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:55,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:55,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:55,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:55,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:55,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:55,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:55,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:55,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:55,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:55,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:18:55,443 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:18:55,443 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:18:55,443 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:55,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:55,448 INFO L229 MonitoredProcess]: Starting monitored process 88 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:55,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-08-27 15:18:55,449 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:55,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:55,456 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:55,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:55,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:55,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:55,456 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:55,456 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:55,457 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:55,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:55,472 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:55,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:55,473 INFO L229 MonitoredProcess]: Starting monitored process 89 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:55,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-08-27 15:18:55,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:55,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:55,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:55,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:55,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:55,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:55,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:55,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:55,507 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:55,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:55,523 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:55,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:55,523 INFO L229 MonitoredProcess]: Starting monitored process 90 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:55,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-08-27 15:18:55,526 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:55,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:55,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:55,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:55,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:55,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:55,533 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:55,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:55,534 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:55,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Ended with exit code 0 [2021-08-27 15:18:55,549 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:55,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:55,550 INFO L229 MonitoredProcess]: Starting monitored process 91 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:55,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-08-27 15:18:55,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:55,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:55,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:55,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:55,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:55,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:55,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:55,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:55,560 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:55,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Ended with exit code 0 [2021-08-27 15:18:55,575 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:55,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:55,576 INFO L229 MonitoredProcess]: Starting monitored process 92 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:55,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-08-27 15:18:55,578 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:55,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:55,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:55,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:55,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:55,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:55,585 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:55,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:55,586 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:55,601 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Ended with exit code 0 [2021-08-27 15:18:55,601 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:55,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:55,602 INFO L229 MonitoredProcess]: Starting monitored process 93 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:55,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-08-27 15:18:55,604 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:55,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:55,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:55,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:55,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:55,611 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:55,611 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:55,613 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:55,628 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2021-08-27 15:18:55,628 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:55,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:55,629 INFO L229 MonitoredProcess]: Starting monitored process 94 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:55,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-08-27 15:18:55,631 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:55,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:55,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:55,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:55,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:55,638 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:55,638 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:55,644 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:55,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Ended with exit code 0 [2021-08-27 15:18:55,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:55,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:55,661 INFO L229 MonitoredProcess]: Starting monitored process 95 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:55,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-08-27 15:18:55,662 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:55,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:55,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:55,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:55,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:55,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:55,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:55,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:55,670 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:55,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Ended with exit code 0 [2021-08-27 15:18:55,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:55,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:55,687 INFO L229 MonitoredProcess]: Starting monitored process 96 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:55,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2021-08-27 15:18:55,689 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:55,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:55,695 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:55,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:55,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:55,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:55,695 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:55,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:55,696 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:55,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Ended with exit code 0 [2021-08-27 15:18:55,712 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:55,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:55,712 INFO L229 MonitoredProcess]: Starting monitored process 97 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:55,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-08-27 15:18:55,714 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:55,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:55,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:18:55,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:55,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:55,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:55,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:18:55,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:18:55,721 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:55,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Ended with exit code 0 [2021-08-27 15:18:55,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:55,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:55,737 INFO L229 MonitoredProcess]: Starting monitored process 98 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:55,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2021-08-27 15:18:55,739 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:55,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:55,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:55,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:55,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:55,746 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:55,746 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:55,748 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:55,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:55,764 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:55,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:55,764 INFO L229 MonitoredProcess]: Starting monitored process 99 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:55,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2021-08-27 15:18:55,766 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:55,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:55,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:55,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:55,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:55,773 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:55,773 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:55,775 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:55,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Ended with exit code 0 [2021-08-27 15:18:55,790 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:55,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:55,791 INFO L229 MonitoredProcess]: Starting monitored process 100 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:55,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2021-08-27 15:18:55,793 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:55,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:55,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:55,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:55,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:55,800 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:55,800 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:55,836 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:55,852 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Ended with exit code 0 [2021-08-27 15:18:55,853 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:55,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:55,853 INFO L229 MonitoredProcess]: Starting monitored process 101 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:55,861 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:55,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:55,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:55,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:55,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:55,869 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:55,869 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:55,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2021-08-27 15:18:55,876 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:55,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Ended with exit code 0 [2021-08-27 15:18:55,891 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:55,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:55,892 INFO L229 MonitoredProcess]: Starting monitored process 102 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:55,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2021-08-27 15:18:55,893 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:55,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:55,900 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 15:18:55,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:55,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:55,901 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 15:18:55,901 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:55,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:55,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:55,918 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:55,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:55,918 INFO L229 MonitoredProcess]: Starting monitored process 103 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:55,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2021-08-27 15:18:55,920 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:55,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:55,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:55,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:55,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:55,927 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:55,927 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:55,929 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:55,944 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Ended with exit code 0 [2021-08-27 15:18:55,944 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:55,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:55,944 INFO L229 MonitoredProcess]: Starting monitored process 104 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:55,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2021-08-27 15:18:55,946 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:55,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:55,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:55,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:55,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:55,953 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:55,953 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:55,955 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:55,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Ended with exit code 0 [2021-08-27 15:18:55,969 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:55,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:55,970 INFO L229 MonitoredProcess]: Starting monitored process 105 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:55,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2021-08-27 15:18:55,971 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:55,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:55,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:55,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:55,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:55,979 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:55,979 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:55,981 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:55,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Ended with exit code 0 [2021-08-27 15:18:55,996 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:55,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:55,997 INFO L229 MonitoredProcess]: Starting monitored process 106 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:55,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2021-08-27 15:18:55,998 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:56,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:56,005 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-08-27 15:18:56,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:56,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:56,008 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-08-27 15:18:56,009 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:56,014 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:56,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:56,029 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:56,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:56,030 INFO L229 MonitoredProcess]: Starting monitored process 107 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:56,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2021-08-27 15:18:56,032 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:56,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:56,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:56,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:56,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:56,039 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:56,039 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:56,042 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:56,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Ended with exit code 0 [2021-08-27 15:18:56,056 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:56,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:56,057 INFO L229 MonitoredProcess]: Starting monitored process 108 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:56,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2021-08-27 15:18:56,059 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:56,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:56,065 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 15:18:56,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:56,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:56,066 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 15:18:56,066 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:56,076 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:56,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:56,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:56,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:56,092 INFO L229 MonitoredProcess]: Starting monitored process 109 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:56,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2021-08-27 15:18:56,094 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:56,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:56,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:56,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:56,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:56,102 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:56,102 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:56,105 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:56,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:56,120 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:56,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:56,121 INFO L229 MonitoredProcess]: Starting monitored process 110 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:56,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2021-08-27 15:18:56,122 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:56,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:56,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:56,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:56,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:56,130 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:56,130 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:56,132 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:18:56,147 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Ended with exit code 0 [2021-08-27 15:18:56,147 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:56,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:56,148 INFO L229 MonitoredProcess]: Starting monitored process 111 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:56,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2021-08-27 15:18:56,150 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:18:56,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:18:56,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:18:56,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:18:56,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:18:56,162 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:18:56,163 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:18:56,173 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:18:56,219 INFO L443 ModelExtractionUtils]: Simplification made 35 calls to the SMT solver. [2021-08-27 15:18:56,219 INFO L444 ModelExtractionUtils]: 1 out of 31 variables were initially zero. Simplification set additionally 27 variables to zero. [2021-08-27 15:18:56,219 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:18:56,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:18:56,220 INFO L229 MonitoredProcess]: Starting monitored process 112 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:18:56,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2021-08-27 15:18:56,221 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:18:56,228 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 15:18:56,228 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:18:56,228 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~nc_A~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~nc_A~0 Supporting invariants [] [2021-08-27 15:18:56,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Ended with exit code 0 [2021-08-27 15:18:56,371 INFO L297 tatePredicateManager]: 47 out of 47 supporting invariants were superfluous and have been removed [2021-08-27 15:18:56,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:56,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Forceful destruction successful, exit code 0 [2021-08-27 15:18:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:56,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 15:18:56,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:18:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:18:56,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 15:18:56,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:18:56,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:18:56,554 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 15:18:56,554 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 44 states and 47 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:56,566 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 44 states and 47 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 53 transitions. Complement of second has 5 states. [2021-08-27 15:18:56,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 15:18:56,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:56,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2021-08-27 15:18:56,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 42 letters. Loop has 2 letters. [2021-08-27 15:18:56,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:18:56,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 44 letters. Loop has 2 letters. [2021-08-27 15:18:56,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:18:56,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 42 letters. Loop has 4 letters. [2021-08-27 15:18:56,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:18:56,567 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 53 transitions. [2021-08-27 15:18:56,568 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:18:56,568 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 48 states and 53 transitions. [2021-08-27 15:18:56,568 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-08-27 15:18:56,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2021-08-27 15:18:56,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 53 transitions. [2021-08-27 15:18:56,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:18:56,569 INFO L681 BuchiCegarLoop]: Abstraction has 48 states and 53 transitions. [2021-08-27 15:18:56,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 53 transitions. [2021-08-27 15:18:56,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-08-27 15:18:56,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.1041666666666667) internal successors, (53), 47 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:18:56,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2021-08-27 15:18:56,570 INFO L704 BuchiCegarLoop]: Abstraction has 48 states and 53 transitions. [2021-08-27 15:18:56,570 INFO L587 BuchiCegarLoop]: Abstraction has 48 states and 53 transitions. [2021-08-27 15:18:56,570 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-08-27 15:18:56,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 53 transitions. [2021-08-27 15:18:56,570 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:18:56,570 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:18:56,570 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:18:56,571 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:18:56,571 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:18:56,571 INFO L791 eck$LassoCheckResult]: Stem: 3013#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 3014#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 3028#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3038#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3030#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3031#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3056#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3055#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3054#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3053#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3052#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3051#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3050#L35-3 assume !(main_~i~0 < 5); 3021#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 3022#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 3009#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3010#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3033#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3049#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3048#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3047#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3046#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3044#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3043#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3042#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3040#L39-3 assume !(main_~i~0 < 5); 3039#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 3032#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 3015#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3016#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3017#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3018#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3045#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3029#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 3019#L44-4 main_~nc_B~0 := 0; 3020#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3035#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3036#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3037#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3041#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3034#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 3011#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 3012#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3027#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 3023#L57-2 [2021-08-27 15:18:56,571 INFO L793 eck$LassoCheckResult]: Loop: 3023#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3024#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 3023#L57-2 [2021-08-27 15:18:56,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:56,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1976327923, now seen corresponding path program 2 times [2021-08-27 15:18:56,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:56,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391804080] [2021-08-27 15:18:56,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:56,572 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:56,584 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:56,606 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:56,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:56,606 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 5 times [2021-08-27 15:18:56,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:56,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105640619] [2021-08-27 15:18:56,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:56,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:56,610 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:56,611 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:18:56,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:18:56,611 INFO L82 PathProgramCache]: Analyzing trace with hash -875586576, now seen corresponding path program 1 times [2021-08-27 15:18:56,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:18:56,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753825806] [2021-08-27 15:18:56,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:18:56,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:18:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:56,632 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:18:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:18:56,647 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:00,553 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:19:00,553 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:19:00,553 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:19:00,553 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:19:00,553 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:19:00,553 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:00,553 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:19:00,553 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:19:00,553 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration16_Lasso [2021-08-27 15:19:00,553 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:19:00,553 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:19:00,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:01,889 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:19:01,889 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:19:01,889 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:01,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:01,893 INFO L229 MonitoredProcess]: Starting monitored process 113 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:01,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2021-08-27 15:19:01,900 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:01,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:01,907 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:01,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:01,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:01,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:01,907 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:01,907 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:01,908 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:01,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Ended with exit code 0 [2021-08-27 15:19:01,924 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:01,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:01,924 INFO L229 MonitoredProcess]: Starting monitored process 114 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:01,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2021-08-27 15:19:01,926 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:01,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:01,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:01,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:01,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:01,933 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:01,933 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:01,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:01,950 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Ended with exit code 0 [2021-08-27 15:19:01,950 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:01,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:01,951 INFO L229 MonitoredProcess]: Starting monitored process 115 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:01,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2021-08-27 15:19:01,953 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 [2021-08-27 15:19:01,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:01,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:01,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:01,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:01,965 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:01,966 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:01,975 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:19:02,003 INFO L443 ModelExtractionUtils]: Simplification made 23 calls to the SMT solver. [2021-08-27 15:19:02,003 INFO L444 ModelExtractionUtils]: 10 out of 31 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-08-27 15:19:02,003 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:02,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:02,004 INFO L229 MonitoredProcess]: Starting monitored process 116 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:02,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2021-08-27 15:19:02,005 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:19:02,012 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-08-27 15:19:02,012 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:19:02,012 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_6) = -1*ULTIMATE.start_main_~i~0 + 1*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_6 Supporting invariants [1*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_6 - 1*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_6 + 1*ULTIMATE.start_main_~#string_A~0.offset >= 0] [2021-08-27 15:19:02,027 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Ended with exit code 0 [2021-08-27 15:19:02,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:02,182 INFO L297 tatePredicateManager]: 48 out of 49 supporting invariants were superfluous and have been removed [2021-08-27 15:19:02,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:02,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:19:02,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 15:19:02,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:19:02,273 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 15:19:02,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2021-08-27 15:19:02,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-08-27 15:19:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:19:03,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 15:19:03,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:19:03,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:19:03,174 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.8 stem predicates 2 loop predicates [2021-08-27 15:19:03,174 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 53 transitions. cyclomatic complexity: 9 Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:03,315 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 53 transitions. cyclomatic complexity: 9. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 63 states and 73 transitions. Complement of second has 10 states. [2021-08-27 15:19:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 6 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 15:19:03,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:03,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 53 transitions. [2021-08-27 15:19:03,316 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 53 transitions. Stem has 44 letters. Loop has 2 letters. [2021-08-27 15:19:03,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:19:03,316 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 53 transitions. Stem has 46 letters. Loop has 2 letters. [2021-08-27 15:19:03,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:19:03,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 53 transitions. Stem has 44 letters. Loop has 4 letters. [2021-08-27 15:19:03,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:19:03,317 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 73 transitions. [2021-08-27 15:19:03,317 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:19:03,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 63 states and 73 transitions. [2021-08-27 15:19:03,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2021-08-27 15:19:03,318 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-08-27 15:19:03,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 73 transitions. [2021-08-27 15:19:03,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:19:03,318 INFO L681 BuchiCegarLoop]: Abstraction has 63 states and 73 transitions. [2021-08-27 15:19:03,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 73 transitions. [2021-08-27 15:19:03,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2021-08-27 15:19:03,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.1346153846153846) internal successors, (59), 51 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:03,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2021-08-27 15:19:03,319 INFO L704 BuchiCegarLoop]: Abstraction has 52 states and 59 transitions. [2021-08-27 15:19:03,319 INFO L587 BuchiCegarLoop]: Abstraction has 52 states and 59 transitions. [2021-08-27 15:19:03,320 INFO L425 BuchiCegarLoop]: ======== Iteration 17============ [2021-08-27 15:19:03,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 59 transitions. [2021-08-27 15:19:03,320 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:19:03,320 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:19:03,320 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:19:03,321 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:19:03,321 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:19:03,321 INFO L791 eck$LassoCheckResult]: Stem: 3501#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 3502#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 3514#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3517#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3524#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3543#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3542#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3541#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3540#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3539#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3538#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3537#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3536#L35-3 assume !(main_~i~0 < 5); 3509#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 3510#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 3499#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3500#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3519#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3535#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3534#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3533#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3532#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3531#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3530#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3529#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3528#L39-3 assume !(main_~i~0 < 5); 3525#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 3518#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 3503#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3504#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3505#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3506#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3516#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3515#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 3507#L44-4 main_~nc_B~0 := 0; 3508#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3521#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3522#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3523#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3527#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3520#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 3497#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 3498#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3512#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 3526#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3546#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 3545#L57-2 [2021-08-27 15:19:03,321 INFO L793 eck$LassoCheckResult]: Loop: 3545#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3544#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 3545#L57-2 [2021-08-27 15:19:03,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:03,321 INFO L82 PathProgramCache]: Analyzing trace with hash -875586574, now seen corresponding path program 3 times [2021-08-27 15:19:03,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:03,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974198739] [2021-08-27 15:19:03,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:03,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:03,336 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:03,350 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:03,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:03,350 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 6 times [2021-08-27 15:19:03,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:03,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906948395] [2021-08-27 15:19:03,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:03,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:03,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:03,353 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:03,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:03,355 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:03,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:03,355 INFO L82 PathProgramCache]: Analyzing trace with hash 374894997, now seen corresponding path program 2 times [2021-08-27 15:19:03,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:03,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708030033] [2021-08-27 15:19:03,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:03,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:19:03,438 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-08-27 15:19:03,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:19:03,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708030033] [2021-08-27 15:19:03,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708030033] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:19:03,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704108998] [2021-08-27 15:19:03,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 15:19:03,439 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 15:19:03,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:03,465 INFO L229 MonitoredProcess]: Starting monitored process 117 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 15:19:03,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2021-08-27 15:19:03,831 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 15:19:03,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 15:19:03,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 15:19:03,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:19:04,012 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-08-27 15:19:04,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704108998] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:19:04,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 15:19:04,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-08-27 15:19:04,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21593291] [2021-08-27 15:19:04,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:19:04,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 15:19:04,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-08-27 15:19:04,079 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. cyclomatic complexity: 12 Second operand has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:04,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:19:04,169 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions. [2021-08-27 15:19:04,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 15:19:04,169 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 83 transitions. [2021-08-27 15:19:04,170 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:19:04,170 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 55 states and 62 transitions. [2021-08-27 15:19:04,170 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2021-08-27 15:19:04,170 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-08-27 15:19:04,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 62 transitions. [2021-08-27 15:19:04,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:19:04,171 INFO L681 BuchiCegarLoop]: Abstraction has 55 states and 62 transitions. [2021-08-27 15:19:04,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 62 transitions. [2021-08-27 15:19:04,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2021-08-27 15:19:04,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 54 states have (on average 1.1296296296296295) internal successors, (61), 53 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:04,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2021-08-27 15:19:04,172 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 61 transitions. [2021-08-27 15:19:04,172 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 61 transitions. [2021-08-27 15:19:04,172 INFO L425 BuchiCegarLoop]: ======== Iteration 18============ [2021-08-27 15:19:04,172 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 61 transitions. [2021-08-27 15:19:04,173 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:19:04,173 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:19:04,173 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:19:04,173 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:19:04,173 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:19:04,173 INFO L791 eck$LassoCheckResult]: Stem: 3790#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 3791#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 3805#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3808#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3815#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3836#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3835#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3834#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3832#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3830#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3828#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3826#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3825#L35-3 assume !(main_~i~0 < 5); 3798#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 3799#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 3786#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3787#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3810#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3833#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3831#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3829#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3827#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3822#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3821#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3820#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3819#L39-3 assume !(main_~i~0 < 5); 3816#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 3809#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 3792#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3793#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3794#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3795#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3807#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3824#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3823#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3806#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 3796#L44-4 main_~nc_B~0 := 0; 3797#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3812#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3813#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3814#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3818#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3811#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 3788#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 3789#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3804#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 3817#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3837#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 3800#L57-2 [2021-08-27 15:19:04,173 INFO L793 eck$LassoCheckResult]: Loop: 3800#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3801#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 3800#L57-2 [2021-08-27 15:19:04,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:04,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1267821783, now seen corresponding path program 4 times [2021-08-27 15:19:04,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:04,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741357080] [2021-08-27 15:19:04,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:04,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:19:04,227 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-08-27 15:19:04,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:19:04,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741357080] [2021-08-27 15:19:04,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741357080] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:19:04,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910165167] [2021-08-27 15:19:04,227 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 15:19:04,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 15:19:04,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:04,228 INFO L229 MonitoredProcess]: Starting monitored process 118 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 15:19:04,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Waiting until timeout for monitored process [2021-08-27 15:19:04,564 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 15:19:04,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 15:19:04,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 15:19:04,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:19:04,711 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-08-27 15:19:04,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910165167] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:19:04,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 15:19:04,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-08-27 15:19:04,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228398744] [2021-08-27 15:19:04,711 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:19:04,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:04,712 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 7 times [2021-08-27 15:19:04,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:04,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762229777] [2021-08-27 15:19:04,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:04,712 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:04,715 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:04,717 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:04,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:19:04,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-27 15:19:04,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2021-08-27 15:19:04,800 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. cyclomatic complexity: 12 Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:04,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:19:04,841 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2021-08-27 15:19:04,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 15:19:04,842 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 67 transitions. [2021-08-27 15:19:04,842 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:19:04,842 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 58 states and 65 transitions. [2021-08-27 15:19:04,842 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2021-08-27 15:19:04,842 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-08-27 15:19:04,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 65 transitions. [2021-08-27 15:19:04,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:19:04,843 INFO L681 BuchiCegarLoop]: Abstraction has 58 states and 65 transitions. [2021-08-27 15:19:04,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 65 transitions. [2021-08-27 15:19:04,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2021-08-27 15:19:04,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.125) internal successors, (63), 55 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2021-08-27 15:19:04,844 INFO L704 BuchiCegarLoop]: Abstraction has 56 states and 63 transitions. [2021-08-27 15:19:04,844 INFO L587 BuchiCegarLoop]: Abstraction has 56 states and 63 transitions. [2021-08-27 15:19:04,844 INFO L425 BuchiCegarLoop]: ======== Iteration 19============ [2021-08-27 15:19:04,844 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 63 transitions. [2021-08-27 15:19:04,845 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:19:04,845 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:19:04,845 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:19:04,845 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:19:04,845 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:19:04,845 INFO L791 eck$LassoCheckResult]: Stem: 4061#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 4062#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 4076#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4079#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4087#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4106#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4105#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4104#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4103#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4102#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4101#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4099#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4097#L35-3 assume !(main_~i~0 < 5); 4069#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 4070#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 4057#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4058#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4081#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4100#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4098#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4096#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4095#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4094#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4093#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4091#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4090#L39-3 assume !(main_~i~0 < 5); 4088#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 4080#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 4063#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4064#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4107#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4078#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4065#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4066#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4092#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4077#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 4067#L44-4 main_~nc_B~0 := 0; 4068#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4083#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4084#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4112#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4085#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4086#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4089#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4082#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 4059#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 4060#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4109#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 4108#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4074#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 4071#L57-2 [2021-08-27 15:19:04,846 INFO L793 eck$LassoCheckResult]: Loop: 4071#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4072#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 4071#L57-2 [2021-08-27 15:19:04,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:04,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1412851758, now seen corresponding path program 5 times [2021-08-27 15:19:04,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:04,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726559405] [2021-08-27 15:19:04,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:04,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:04,860 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:04,875 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:04,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:04,875 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 8 times [2021-08-27 15:19:04,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:04,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458385429] [2021-08-27 15:19:04,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:04,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:04,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:04,879 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:04,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:04,880 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:04,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:04,881 INFO L82 PathProgramCache]: Analyzing trace with hash -540871307, now seen corresponding path program 3 times [2021-08-27 15:19:04,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:04,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994666738] [2021-08-27 15:19:04,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:04,881 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:04,896 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:04,912 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:09,843 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:19:09,843 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:19:09,843 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:19:09,843 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:19:09,843 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:19:09,844 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:09,844 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:19:09,844 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:19:09,844 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration19_Lasso [2021-08-27 15:19:09,844 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:19:09,844 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:19:09,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:09,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:09,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:09,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:09,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:09,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:09,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:09,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:09,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:09,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:09,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:10,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:10,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:10,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:10,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:10,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:10,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:10,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:10,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:10,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:10,883 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-08-27 15:19:12,499 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:19:12,499 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:19:12,500 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:12,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:12,501 INFO L229 MonitoredProcess]: Starting monitored process 119 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:12,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Waiting until timeout for monitored process [2021-08-27 15:19:12,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:12,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:12,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:12,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:12,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:12,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:12,509 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:12,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:12,510 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:12,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:12,525 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:12,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:12,526 INFO L229 MonitoredProcess]: Starting monitored process 120 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:12,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Waiting until timeout for monitored process [2021-08-27 15:19:12,529 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:12,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:12,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:12,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:12,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:12,536 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:12,536 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:12,538 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:12,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Ended with exit code 0 [2021-08-27 15:19:12,553 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:12,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:12,554 INFO L229 MonitoredProcess]: Starting monitored process 121 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:12,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Waiting until timeout for monitored process [2021-08-27 15:19:12,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:12,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:12,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:12,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:12,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:12,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:12,562 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:12,562 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:12,563 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:12,578 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Ended with exit code 0 [2021-08-27 15:19:12,578 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:12,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:12,579 INFO L229 MonitoredProcess]: Starting monitored process 122 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:12,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Waiting until timeout for monitored process [2021-08-27 15:19:12,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:12,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:12,587 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:12,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:12,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:12,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:12,588 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:12,588 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:12,590 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:12,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Ended with exit code 0 [2021-08-27 15:19:12,606 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:12,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:12,606 INFO L229 MonitoredProcess]: Starting monitored process 123 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:12,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Waiting until timeout for monitored process [2021-08-27 15:19:12,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:12,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:12,614 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:12,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:12,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:12,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:12,615 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:12,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:12,616 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:12,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Ended with exit code 0 [2021-08-27 15:19:12,631 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:12,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:12,632 INFO L229 MonitoredProcess]: Starting monitored process 124 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:12,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Waiting until timeout for monitored process [2021-08-27 15:19:12,634 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:12,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:12,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:12,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:12,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:12,641 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:12,641 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:12,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:12,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Ended with exit code 0 [2021-08-27 15:19:12,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:12,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:12,666 INFO L229 MonitoredProcess]: Starting monitored process 125 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:12,669 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:12,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Waiting until timeout for monitored process [2021-08-27 15:19:12,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:12,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:12,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:12,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:12,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:12,675 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:12,675 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:12,676 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:12,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:12,691 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:12,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:12,692 INFO L229 MonitoredProcess]: Starting monitored process 126 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:12,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Waiting until timeout for monitored process [2021-08-27 15:19:12,694 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:12,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:12,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:12,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:12,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:12,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:12,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:12,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:12,704 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:12,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:12,720 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:12,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:12,721 INFO L229 MonitoredProcess]: Starting monitored process 127 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:12,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Waiting until timeout for monitored process [2021-08-27 15:19:12,723 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:12,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:12,729 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:12,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:12,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:12,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:12,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:12,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:12,730 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:12,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Ended with exit code 0 [2021-08-27 15:19:12,745 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:12,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:12,746 INFO L229 MonitoredProcess]: Starting monitored process 128 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:12,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Waiting until timeout for monitored process [2021-08-27 15:19:12,748 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:12,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:12,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:12,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:12,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:12,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:12,755 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:12,760 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:12,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:12,776 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:12,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:12,777 INFO L229 MonitoredProcess]: Starting monitored process 129 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:12,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Waiting until timeout for monitored process [2021-08-27 15:19:12,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:12,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:12,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:12,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:12,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:12,786 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:12,786 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:12,788 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:12,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Ended with exit code 0 [2021-08-27 15:19:12,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:12,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:12,804 INFO L229 MonitoredProcess]: Starting monitored process 130 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:12,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Waiting until timeout for monitored process [2021-08-27 15:19:12,806 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:12,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:12,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:12,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:12,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:12,813 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:12,814 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:12,816 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:12,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Ended with exit code 0 [2021-08-27 15:19:12,832 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:12,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:12,832 INFO L229 MonitoredProcess]: Starting monitored process 131 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:12,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Waiting until timeout for monitored process [2021-08-27 15:19:12,834 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:12,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:12,841 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:12,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:12,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:12,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:12,841 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:12,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:12,844 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:12,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:12,860 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:12,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:12,860 INFO L229 MonitoredProcess]: Starting monitored process 132 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:12,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Waiting until timeout for monitored process [2021-08-27 15:19:12,862 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:12,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:12,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:12,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:12,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:12,870 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:12,870 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:12,872 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:12,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Ended with exit code 0 [2021-08-27 15:19:12,895 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:12,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:12,896 INFO L229 MonitoredProcess]: Starting monitored process 133 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:12,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Waiting until timeout for monitored process [2021-08-27 15:19:12,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:12,904 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:12,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:12,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:12,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:12,906 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:12,906 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:12,910 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:12,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:12,925 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:12,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:12,926 INFO L229 MonitoredProcess]: Starting monitored process 134 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:12,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Waiting until timeout for monitored process [2021-08-27 15:19:12,932 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:12,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:12,939 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 15:19:12,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:12,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:12,940 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 15:19:12,940 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:12,944 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:12,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:12,960 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:12,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:12,961 INFO L229 MonitoredProcess]: Starting monitored process 135 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:12,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Waiting until timeout for monitored process [2021-08-27 15:19:12,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:12,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:12,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:12,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:12,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:12,970 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:12,970 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:12,971 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:12,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Ended with exit code 0 [2021-08-27 15:19:12,987 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:12,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:12,988 INFO L229 MonitoredProcess]: Starting monitored process 136 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:12,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (136)] Waiting until timeout for monitored process [2021-08-27 15:19:12,989 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:12,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:12,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:12,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:12,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:12,996 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:12,996 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:12,998 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:13,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (136)] Ended with exit code 0 [2021-08-27 15:19:13,014 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:13,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:13,014 INFO L229 MonitoredProcess]: Starting monitored process 137 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:13,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Waiting until timeout for monitored process [2021-08-27 15:19:13,016 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:13,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:13,022 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 15:19:13,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:13,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:13,023 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 15:19:13,023 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:13,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:13,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Ended with exit code 0 [2021-08-27 15:19:13,044 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:13,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:13,045 INFO L229 MonitoredProcess]: Starting monitored process 138 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:13,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (138)] Waiting until timeout for monitored process [2021-08-27 15:19:13,046 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:13,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:13,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:13,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:13,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:13,053 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:13,053 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:13,060 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:13,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (138)] Ended with exit code 0 [2021-08-27 15:19:13,075 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:13,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:13,076 INFO L229 MonitoredProcess]: Starting monitored process 139 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:13,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Waiting until timeout for monitored process [2021-08-27 15:19:13,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:13,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:13,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:13,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:13,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:13,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:13,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:13,087 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:13,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:13,104 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:13,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:13,105 INFO L229 MonitoredProcess]: Starting monitored process 140 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:13,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Waiting until timeout for monitored process [2021-08-27 15:19:13,106 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:13,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:13,113 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:13,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:13,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:13,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:13,113 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:13,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:13,114 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:13,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:13,129 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:13,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:13,129 INFO L229 MonitoredProcess]: Starting monitored process 141 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:13,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Waiting until timeout for monitored process [2021-08-27 15:19:13,131 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:13,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:13,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:13,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:13,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:13,146 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:13,146 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:13,161 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:19:13,198 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2021-08-27 15:19:13,198 INFO L444 ModelExtractionUtils]: 3 out of 31 variables were initially zero. Simplification set additionally 25 variables to zero. [2021-08-27 15:19:13,199 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:13,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:13,204 INFO L229 MonitoredProcess]: Starting monitored process 142 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:13,211 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:19:13,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Waiting until timeout for monitored process [2021-08-27 15:19:13,224 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 15:19:13,224 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:19:13,224 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_7, ULTIMATE.start_main_~i~0) = 5*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_7 - 2*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-08-27 15:19:13,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:13,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:13,468 INFO L297 tatePredicateManager]: 66 out of 69 supporting invariants were superfluous and have been removed [2021-08-27 15:19:13,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:19:13,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 15:19:13,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:19:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:19:14,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 15:19:14,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:19:14,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:19:14,243 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2021-08-27 15:19:14,244 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 63 transitions. cyclomatic complexity: 12 Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:14,336 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 63 transitions. cyclomatic complexity: 12. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 82 states and 97 transitions. Complement of second has 12 states. [2021-08-27 15:19:14,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 7 stem states 1 non-accepting loop states 2 accepting loop states [2021-08-27 15:19:14,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:14,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 42 transitions. [2021-08-27 15:19:14,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 42 transitions. Stem has 50 letters. Loop has 2 letters. [2021-08-27 15:19:14,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:19:14,338 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 15:19:14,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:19:14,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 15:19:14,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:19:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:19:15,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 15:19:15,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:19:15,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:19:15,073 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.7 stem predicates 2 loop predicates [2021-08-27 15:19:15,073 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 63 transitions. cyclomatic complexity: 12 Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:15,158 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 63 transitions. cyclomatic complexity: 12. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 82 states and 97 transitions. Complement of second has 12 states. [2021-08-27 15:19:15,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 7 stem states 1 non-accepting loop states 2 accepting loop states [2021-08-27 15:19:15,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:15,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 42 transitions. [2021-08-27 15:19:15,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 42 transitions. Stem has 50 letters. Loop has 2 letters. [2021-08-27 15:19:15,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:19:15,159 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 15:19:15,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:19:15,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 15:19:15,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:19:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:19:15,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 15:19:15,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:19:15,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:19:15,984 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2021-08-27 15:19:15,984 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 63 transitions. cyclomatic complexity: 12 Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:16,067 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 63 transitions. cyclomatic complexity: 12. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 88 states and 106 transitions. Complement of second has 11 states. [2021-08-27 15:19:16,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 7 stem states 1 non-accepting loop states 2 accepting loop states [2021-08-27 15:19:16,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:16,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 44 transitions. [2021-08-27 15:19:16,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 44 transitions. Stem has 50 letters. Loop has 2 letters. [2021-08-27 15:19:16,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:19:16,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 44 transitions. Stem has 52 letters. Loop has 2 letters. [2021-08-27 15:19:16,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:19:16,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 44 transitions. Stem has 50 letters. Loop has 4 letters. [2021-08-27 15:19:16,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:19:16,069 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 106 transitions. [2021-08-27 15:19:16,069 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-08-27 15:19:16,070 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 86 states and 102 transitions. [2021-08-27 15:19:16,070 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 50 [2021-08-27 15:19:16,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-08-27 15:19:16,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 102 transitions. [2021-08-27 15:19:16,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:19:16,070 INFO L681 BuchiCegarLoop]: Abstraction has 86 states and 102 transitions. [2021-08-27 15:19:16,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 102 transitions. [2021-08-27 15:19:16,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 73. [2021-08-27 15:19:16,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 73 states have (on average 1.1506849315068493) internal successors, (84), 72 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:16,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2021-08-27 15:19:16,072 INFO L704 BuchiCegarLoop]: Abstraction has 73 states and 84 transitions. [2021-08-27 15:19:16,072 INFO L587 BuchiCegarLoop]: Abstraction has 73 states and 84 transitions. [2021-08-27 15:19:16,072 INFO L425 BuchiCegarLoop]: ======== Iteration 20============ [2021-08-27 15:19:16,072 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 84 transitions. [2021-08-27 15:19:16,072 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-08-27 15:19:16,073 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:19:16,073 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:19:16,073 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:19:16,073 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:19:16,073 INFO L791 eck$LassoCheckResult]: Stem: 5223#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 5224#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 5238#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5241#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5248#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5265#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5263#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5261#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5259#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5257#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5255#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5253#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5251#L35-3 assume !(main_~i~0 < 5); 5231#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 5232#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 5219#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5220#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5243#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5264#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5262#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5260#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5258#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5256#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5254#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5252#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5250#L39-3 assume !(main_~i~0 < 5); 5249#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 5242#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 5225#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5226#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5240#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5271#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5227#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5228#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5268#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5239#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 5229#L44-4 main_~nc_B~0 := 0; 5230#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5245#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5246#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5247#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5270#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5267#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5266#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5244#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 5221#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 5222#L57-2 [2021-08-27 15:19:16,073 INFO L793 eck$LassoCheckResult]: Loop: 5222#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5236#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 5222#L57-2 [2021-08-27 15:19:16,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:16,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1972313288, now seen corresponding path program 3 times [2021-08-27 15:19:16,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:16,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606762312] [2021-08-27 15:19:16,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:16,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:16,087 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:16,121 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:16,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:16,121 INFO L82 PathProgramCache]: Analyzing trace with hash 3558, now seen corresponding path program 3 times [2021-08-27 15:19:16,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:16,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347848604] [2021-08-27 15:19:16,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:16,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:16,126 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:16,127 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:16,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:16,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1312494829, now seen corresponding path program 6 times [2021-08-27 15:19:16,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:16,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964498197] [2021-08-27 15:19:16,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:16,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:16,156 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:16,171 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:21,181 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:19:21,181 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:19:21,181 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:19:21,181 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:19:21,181 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:19:21,181 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:21,181 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:19:21,181 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:19:21,181 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration20_Lasso [2021-08-27 15:19:21,181 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:19:21,181 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:19:21,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:21,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:21,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:21,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:21,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:21,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:21,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:21,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:21,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:21,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:21,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:21,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:21,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:21,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:21,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:21,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:21,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:21,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:21,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:21,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:22,402 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:19:22,402 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:19:22,402 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,403 INFO L229 MonitoredProcess]: Starting monitored process 143 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Waiting until timeout for monitored process [2021-08-27 15:19:22,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:22,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:22,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,413 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:22,413 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:22,414 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Ended with exit code 0 [2021-08-27 15:19:22,430 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,430 INFO L229 MonitoredProcess]: Starting monitored process 144 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Waiting until timeout for monitored process [2021-08-27 15:19:22,432 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 [2021-08-27 15:19:22,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,439 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:22,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:22,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,439 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:22,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:22,448 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Ended with exit code 0 [2021-08-27 15:19:22,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,464 INFO L229 MonitoredProcess]: Starting monitored process 145 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Waiting until timeout for monitored process [2021-08-27 15:19:22,466 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:22,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:22,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:22,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,473 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:22,473 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:22,476 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,491 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Ended with exit code 0 [2021-08-27 15:19:22,491 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,492 INFO L229 MonitoredProcess]: Starting monitored process 146 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Waiting until timeout for monitored process [2021-08-27 15:19:22,494 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:22,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:22,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:22,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,501 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:22,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:22,502 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Ended with exit code 0 [2021-08-27 15:19:22,518 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,518 INFO L229 MonitoredProcess]: Starting monitored process 147 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Waiting until timeout for monitored process [2021-08-27 15:19:22,520 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:22,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:22,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,528 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:22,528 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:22,534 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Ended with exit code 0 [2021-08-27 15:19:22,549 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,550 INFO L229 MonitoredProcess]: Starting monitored process 148 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Waiting until timeout for monitored process [2021-08-27 15:19:22,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:22,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:22,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:22,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:22,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:22,559 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Ended with exit code 0 [2021-08-27 15:19:22,574 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,576 INFO L229 MonitoredProcess]: Starting monitored process 149 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Waiting until timeout for monitored process [2021-08-27 15:19:22,578 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:22,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:22,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:22,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:22,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:22,585 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,600 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Ended with exit code 0 [2021-08-27 15:19:22,600 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,601 INFO L229 MonitoredProcess]: Starting monitored process 150 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (150)] Waiting until timeout for monitored process [2021-08-27 15:19:22,602 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:22,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:22,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:22,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,609 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:22,609 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:22,610 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (150)] Ended with exit code 0 [2021-08-27 15:19:22,625 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,625 INFO L229 MonitoredProcess]: Starting monitored process 151 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (151)] Waiting until timeout for monitored process [2021-08-27 15:19:22,627 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:22,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:22,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,634 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:22,634 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:22,636 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,651 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (151)] Ended with exit code 0 [2021-08-27 15:19:22,651 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,652 INFO L229 MonitoredProcess]: Starting monitored process 152 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (152)] Waiting until timeout for monitored process [2021-08-27 15:19:22,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:22,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,660 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:22,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:22,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:22,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:22,661 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (152)] Ended with exit code 0 [2021-08-27 15:19:22,676 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,676 INFO L229 MonitoredProcess]: Starting monitored process 153 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (153)] Waiting until timeout for monitored process [2021-08-27 15:19:22,678 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:22,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:22,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,685 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:22,685 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:22,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (153)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:22,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,704 INFO L229 MonitoredProcess]: Starting monitored process 154 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (154)] Waiting until timeout for monitored process [2021-08-27 15:19:22,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:22,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,712 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:22,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:22,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:22,712 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:22,713 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (154)] Ended with exit code 0 [2021-08-27 15:19:22,728 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,729 INFO L229 MonitoredProcess]: Starting monitored process 155 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (155)] Waiting until timeout for monitored process [2021-08-27 15:19:22,731 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:22,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:22,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,738 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:22,738 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:22,740 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,755 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (155)] Ended with exit code 0 [2021-08-27 15:19:22,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,756 INFO L229 MonitoredProcess]: Starting monitored process 156 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (156)] Waiting until timeout for monitored process [2021-08-27 15:19:22,758 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:22,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:22,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:22,766 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:22,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,782 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (156)] Ended with exit code 0 [2021-08-27 15:19:22,783 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,783 INFO L229 MonitoredProcess]: Starting monitored process 157 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (157)] Waiting until timeout for monitored process [2021-08-27 15:19:22,785 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:22,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:22,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,793 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:22,793 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:22,796 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (157)] Ended with exit code 0 [2021-08-27 15:19:22,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,812 INFO L229 MonitoredProcess]: Starting monitored process 158 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (158)] Waiting until timeout for monitored process [2021-08-27 15:19:22,814 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:22,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:22,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,822 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:22,822 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:22,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (158)] Ended with exit code 0 [2021-08-27 15:19:22,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,839 INFO L229 MonitoredProcess]: Starting monitored process 159 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (159)] Waiting until timeout for monitored process [2021-08-27 15:19:22,841 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:22,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,848 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 15:19:22,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,849 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 15:19:22,849 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:22,851 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (159)] Ended with exit code 0 [2021-08-27 15:19:22,867 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,867 INFO L229 MonitoredProcess]: Starting monitored process 160 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (160)] Waiting until timeout for monitored process [2021-08-27 15:19:22,869 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:22,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,876 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-08-27 15:19:22,876 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-27 15:19:22,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,891 INFO L401 nArgumentSynthesizer]: We have 28 Motzkin's Theorem applications. [2021-08-27 15:19:22,891 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-08-27 15:19:22,907 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (160)] Ended with exit code 0 [2021-08-27 15:19:22,923 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,924 INFO L229 MonitoredProcess]: Starting monitored process 161 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (161)] Waiting until timeout for monitored process [2021-08-27 15:19:22,926 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:22,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:22,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,934 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:22,934 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:22,936 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (161)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:22,951 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,952 INFO L229 MonitoredProcess]: Starting monitored process 162 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (162)] Waiting until timeout for monitored process [2021-08-27 15:19:22,953 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 [2021-08-27 15:19:22,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:22,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,960 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:22,960 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:22,964 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:22,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (162)] Ended with exit code 0 [2021-08-27 15:19:22,980 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:22,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:22,980 INFO L229 MonitoredProcess]: Starting monitored process 163 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:22,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (163)] Waiting until timeout for monitored process [2021-08-27 15:19:22,988 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:22,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:22,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:22,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:22,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:22,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:22,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:22,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:22,996 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:23,011 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (163)] Ended with exit code 0 [2021-08-27 15:19:23,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:23,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:23,012 INFO L229 MonitoredProcess]: Starting monitored process 164 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:23,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (164)] Waiting until timeout for monitored process [2021-08-27 15:19:23,014 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:23,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:23,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:23,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:23,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:23,022 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:23,022 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:23,024 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:23,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (164)] Ended with exit code 0 [2021-08-27 15:19:23,039 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:23,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:23,040 INFO L229 MonitoredProcess]: Starting monitored process 165 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:23,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (165)] Waiting until timeout for monitored process [2021-08-27 15:19:23,042 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:23,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:23,048 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 15:19:23,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:23,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:23,049 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 15:19:23,049 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:23,052 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:23,067 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (165)] Ended with exit code 0 [2021-08-27 15:19:23,068 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:23,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:23,068 INFO L229 MonitoredProcess]: Starting monitored process 166 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:23,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (166)] Waiting until timeout for monitored process [2021-08-27 15:19:23,070 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:23,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:23,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:23,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:23,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:23,078 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:23,078 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:23,087 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:23,102 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (166)] Ended with exit code 0 [2021-08-27 15:19:23,102 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:23,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:23,103 INFO L229 MonitoredProcess]: Starting monitored process 167 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:23,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (167)] Waiting until timeout for monitored process [2021-08-27 15:19:23,105 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:23,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:23,111 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 15:19:23,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:23,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:23,113 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 15:19:23,113 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:23,127 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:23,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (167)] Ended with exit code 0 [2021-08-27 15:19:23,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:23,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:23,144 INFO L229 MonitoredProcess]: Starting monitored process 168 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:23,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (168)] Waiting until timeout for monitored process [2021-08-27 15:19:23,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:23,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:23,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:23,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:23,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:23,152 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:23,153 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:23,154 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:23,169 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (168)] Ended with exit code 0 [2021-08-27 15:19:23,170 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:23,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:23,170 INFO L229 MonitoredProcess]: Starting monitored process 169 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:23,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (169)] Waiting until timeout for monitored process [2021-08-27 15:19:23,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:23,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:23,179 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 15:19:23,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:23,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:23,181 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 15:19:23,181 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:23,188 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:23,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (169)] Ended with exit code 0 [2021-08-27 15:19:23,204 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:23,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:23,204 INFO L229 MonitoredProcess]: Starting monitored process 170 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:23,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (170)] Waiting until timeout for monitored process [2021-08-27 15:19:23,206 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:23,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:23,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:23,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:23,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:23,213 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:23,213 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:23,219 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:23,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (170)] Ended with exit code 0 [2021-08-27 15:19:23,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:23,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:23,234 INFO L229 MonitoredProcess]: Starting monitored process 171 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:23,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (171)] Waiting until timeout for monitored process [2021-08-27 15:19:23,236 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:23,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:23,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:23,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:23,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:23,250 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:23,250 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:23,260 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:19:23,279 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-08-27 15:19:23,279 INFO L444 ModelExtractionUtils]: 0 out of 31 variables were initially zero. Simplification set additionally 28 variables to zero. [2021-08-27 15:19:23,279 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:23,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:23,280 INFO L229 MonitoredProcess]: Starting monitored process 172 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:23,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (172)] Waiting until timeout for monitored process [2021-08-27 15:19:23,281 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:19:23,288 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 15:19:23,289 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:19:23,289 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~nc_A~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~nc_A~0 Supporting invariants [] [2021-08-27 15:19:23,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (171)] Ended with exit code 0 [2021-08-27 15:19:23,492 INFO L297 tatePredicateManager]: 74 out of 75 supporting invariants were superfluous and have been removed [2021-08-27 15:19:23,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (172)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:23,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:19:23,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 15:19:23,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:19:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:19:23,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 15:19:23,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:19:23,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:19:23,709 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 15:19:23,709 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 73 states and 84 transitions. cyclomatic complexity: 18 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:23,736 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 73 states and 84 transitions. cyclomatic complexity: 18. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 102 states and 123 transitions. Complement of second has 6 states. [2021-08-27 15:19:23,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2021-08-27 15:19:23,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:23,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2021-08-27 15:19:23,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 46 letters. Loop has 2 letters. [2021-08-27 15:19:23,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:19:23,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 48 letters. Loop has 2 letters. [2021-08-27 15:19:23,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:19:23,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 46 letters. Loop has 4 letters. [2021-08-27 15:19:23,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:19:23,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 123 transitions. [2021-08-27 15:19:23,739 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-08-27 15:19:23,739 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 95 states and 114 transitions. [2021-08-27 15:19:23,739 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2021-08-27 15:19:23,740 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2021-08-27 15:19:23,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 114 transitions. [2021-08-27 15:19:23,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:19:23,740 INFO L681 BuchiCegarLoop]: Abstraction has 95 states and 114 transitions. [2021-08-27 15:19:23,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 114 transitions. [2021-08-27 15:19:23,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 81. [2021-08-27 15:19:23,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 81 states have (on average 1.1851851851851851) internal successors, (96), 80 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:23,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 96 transitions. [2021-08-27 15:19:23,741 INFO L704 BuchiCegarLoop]: Abstraction has 81 states and 96 transitions. [2021-08-27 15:19:23,741 INFO L587 BuchiCegarLoop]: Abstraction has 81 states and 96 transitions. [2021-08-27 15:19:23,742 INFO L425 BuchiCegarLoop]: ======== Iteration 21============ [2021-08-27 15:19:23,742 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states and 96 transitions. [2021-08-27 15:19:23,742 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-08-27 15:19:23,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:19:23,742 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:19:23,743 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:19:23,743 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:19:23,743 INFO L791 eck$LassoCheckResult]: Stem: 5873#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 5874#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 5886#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5888#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5897#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5916#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5914#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5912#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5910#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5908#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5906#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5904#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5902#L35-3 assume !(main_~i~0 < 5); 5881#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 5882#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 5869#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5870#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5890#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5915#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5913#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5911#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5909#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5907#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5905#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5903#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5901#L39-3 assume !(main_~i~0 < 5); 5898#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 5889#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 5875#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5876#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5877#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5878#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5921#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5922#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5943#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5942#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 5941#L44-4 main_~nc_B~0 := 0; 5940#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5939#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5938#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5937#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5936#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5935#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5934#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5933#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 5871#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 5872#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5884#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 5949#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5899#L57 [2021-08-27 15:19:23,743 INFO L793 eck$LassoCheckResult]: Loop: 5899#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 5900#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5899#L57 [2021-08-27 15:19:23,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:23,743 INFO L82 PathProgramCache]: Analyzing trace with hash 2032634054, now seen corresponding path program 3 times [2021-08-27 15:19:23,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:23,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043654814] [2021-08-27 15:19:23,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:23,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:23,759 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:23,795 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:23,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:23,795 INFO L82 PathProgramCache]: Analyzing trace with hash 3708, now seen corresponding path program 4 times [2021-08-27 15:19:23,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:23,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475607689] [2021-08-27 15:19:23,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:23,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:23,800 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:23,801 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:23,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:23,801 INFO L82 PathProgramCache]: Analyzing trace with hash -848791039, now seen corresponding path program 4 times [2021-08-27 15:19:23,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:23,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814787065] [2021-08-27 15:19:23,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:23,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:23,815 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:23,830 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:30,729 WARN L207 SmtUtils]: Spent 6.83 s on a formula simplification. DAG size of input: 383 DAG size of output: 282 [2021-08-27 15:19:31,368 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:19:31,368 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:19:31,368 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:19:31,368 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:19:31,368 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:19:31,368 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:31,368 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:19:31,369 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:19:31,369 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration21_Lasso [2021-08-27 15:19:31,369 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:19:31,369 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:19:31,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:31,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:31,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:31,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:31,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:31,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:31,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:31,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:31,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:31,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:31,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:31,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:31,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:31,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:31,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:31,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:31,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:32,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:32,863 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:19:32,863 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:19:32,863 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:32,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:32,869 INFO L229 MonitoredProcess]: Starting monitored process 173 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:32,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (173)] Waiting until timeout for monitored process [2021-08-27 15:19:32,871 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:32,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:32,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:32,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:32,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:32,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:32,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:32,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:32,880 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:32,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (173)] Ended with exit code 0 [2021-08-27 15:19:32,895 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:32,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:32,896 INFO L229 MonitoredProcess]: Starting monitored process 174 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:32,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (174)] Waiting until timeout for monitored process [2021-08-27 15:19:32,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:32,904 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:32,904 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:32,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:32,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:32,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:32,905 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:32,905 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:32,910 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:32,925 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (174)] Ended with exit code 0 [2021-08-27 15:19:32,925 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:32,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:32,926 INFO L229 MonitoredProcess]: Starting monitored process 175 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:32,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (175)] Waiting until timeout for monitored process [2021-08-27 15:19:32,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:32,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:32,935 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:32,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:32,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:32,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:32,935 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:32,935 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:32,936 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:32,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (175)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:32,951 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:32,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:32,951 INFO L229 MonitoredProcess]: Starting monitored process 176 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:32,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (176)] Waiting until timeout for monitored process [2021-08-27 15:19:32,953 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 [2021-08-27 15:19:32,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:32,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:32,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:32,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:32,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:32,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:32,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:32,961 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:32,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (176)] Ended with exit code 0 [2021-08-27 15:19:32,976 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:32,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:32,977 INFO L229 MonitoredProcess]: Starting monitored process 177 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:32,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (177)] Waiting until timeout for monitored process [2021-08-27 15:19:32,979 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:32,985 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:32,985 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:32,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:32,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:32,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:32,985 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:32,985 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:32,986 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (177)] Ended with exit code 0 [2021-08-27 15:19:33,001 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,001 INFO L229 MonitoredProcess]: Starting monitored process 178 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (178)] Waiting until timeout for monitored process [2021-08-27 15:19:33,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,010 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:33,010 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:33,012 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (178)] Ended with exit code 0 [2021-08-27 15:19:33,027 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,027 INFO L229 MonitoredProcess]: Starting monitored process 179 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (179)] Waiting until timeout for monitored process [2021-08-27 15:19:33,029 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,036 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:33,036 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:33,038 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (179)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:33,053 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,054 INFO L229 MonitoredProcess]: Starting monitored process 180 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (180)] Waiting until timeout for monitored process [2021-08-27 15:19:33,056 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:33,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,063 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:33,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:33,063 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (180)] Ended with exit code 0 [2021-08-27 15:19:33,079 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,079 INFO L229 MonitoredProcess]: Starting monitored process 181 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (181)] Waiting until timeout for monitored process [2021-08-27 15:19:33,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,088 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:33,088 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:33,090 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (181)] Ended with exit code 0 [2021-08-27 15:19:33,105 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,106 INFO L229 MonitoredProcess]: Starting monitored process 182 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (182)] Waiting until timeout for monitored process [2021-08-27 15:19:33,107 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,114 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:33,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,114 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:33,114 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:33,115 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (182)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:33,130 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,131 INFO L229 MonitoredProcess]: Starting monitored process 183 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (183)] Waiting until timeout for monitored process [2021-08-27 15:19:33,132 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,140 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:33,140 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:33,142 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,157 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (183)] Ended with exit code 0 [2021-08-27 15:19:33,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,157 INFO L229 MonitoredProcess]: Starting monitored process 184 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (184)] Waiting until timeout for monitored process [2021-08-27 15:19:33,159 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,166 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:33,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,166 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:33,166 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:33,173 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,190 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (184)] Ended with exit code 0 [2021-08-27 15:19:33,190 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,191 INFO L229 MonitoredProcess]: Starting monitored process 185 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (185)] Waiting until timeout for monitored process [2021-08-27 15:19:33,193 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,199 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:33,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,200 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:33,200 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:33,208 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (185)] Ended with exit code 0 [2021-08-27 15:19:33,223 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,224 INFO L229 MonitoredProcess]: Starting monitored process 186 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (186)] Waiting until timeout for monitored process [2021-08-27 15:19:33,226 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:33,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,235 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:33,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:33,236 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,252 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (186)] Ended with exit code 0 [2021-08-27 15:19:33,252 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,252 INFO L229 MonitoredProcess]: Starting monitored process 187 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (187)] Waiting until timeout for monitored process [2021-08-27 15:19:33,254 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:33,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,261 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:33,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:33,262 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,276 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (187)] Ended with exit code 0 [2021-08-27 15:19:33,276 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,277 INFO L229 MonitoredProcess]: Starting monitored process 188 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (188)] Waiting until timeout for monitored process [2021-08-27 15:19:33,279 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,285 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:33,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,286 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:33,286 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:33,287 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,302 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (188)] Ended with exit code 0 [2021-08-27 15:19:33,302 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,303 INFO L229 MonitoredProcess]: Starting monitored process 189 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (189)] Waiting until timeout for monitored process [2021-08-27 15:19:33,305 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,311 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 15:19:33,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,312 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 15:19:33,312 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:33,316 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (189)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:33,331 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,333 INFO L229 MonitoredProcess]: Starting monitored process 190 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (190)] Waiting until timeout for monitored process [2021-08-27 15:19:33,335 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,342 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:33,342 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:33,344 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (190)] Ended with exit code 0 [2021-08-27 15:19:33,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,360 INFO L229 MonitoredProcess]: Starting monitored process 191 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (191)] Waiting until timeout for monitored process [2021-08-27 15:19:33,362 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,369 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:33,369 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:33,380 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (191)] Ended with exit code 0 [2021-08-27 15:19:33,396 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,396 INFO L229 MonitoredProcess]: Starting monitored process 192 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (192)] Waiting until timeout for monitored process [2021-08-27 15:19:33,400 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,407 INFO L203 nArgumentSynthesizer]: 8 stem disjuncts [2021-08-27 15:19:33,407 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-27 15:19:33,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,451 INFO L401 nArgumentSynthesizer]: We have 44 Motzkin's Theorem applications. [2021-08-27 15:19:33,451 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-08-27 15:19:33,500 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (192)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:33,517 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,517 INFO L229 MonitoredProcess]: Starting monitored process 193 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (193)] Waiting until timeout for monitored process [2021-08-27 15:19:33,519 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,528 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:33,528 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:33,543 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (193)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:33,559 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,559 INFO L229 MonitoredProcess]: Starting monitored process 194 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (194)] Waiting until timeout for monitored process [2021-08-27 15:19:33,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,569 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:33,569 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:33,594 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (194)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:33,613 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,614 INFO L229 MonitoredProcess]: Starting monitored process 195 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,620 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 [2021-08-27 15:19:33,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,627 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 15:19:33,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,629 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 15:19:33,629 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:33,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (195)] Waiting until timeout for monitored process [2021-08-27 15:19:33,644 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (195)] Ended with exit code 0 [2021-08-27 15:19:33,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,661 INFO L229 MonitoredProcess]: Starting monitored process 196 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (196)] Waiting until timeout for monitored process [2021-08-27 15:19:33,663 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,670 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:33,670 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:33,673 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (196)] Ended with exit code 0 [2021-08-27 15:19:33,687 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,688 INFO L229 MonitoredProcess]: Starting monitored process 197 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (197)] Waiting until timeout for monitored process [2021-08-27 15:19:33,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,697 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:33,697 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:33,699 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (197)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:33,714 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,715 INFO L229 MonitoredProcess]: Starting monitored process 198 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (198)] Waiting until timeout for monitored process [2021-08-27 15:19:33,716 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,724 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:33,724 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:33,726 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (198)] Ended with exit code 0 [2021-08-27 15:19:33,741 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,742 INFO L229 MonitoredProcess]: Starting monitored process 199 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (199)] Waiting until timeout for monitored process [2021-08-27 15:19:33,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,749 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:33,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,750 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:33,750 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:33,751 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (199)] Ended with exit code 0 [2021-08-27 15:19:33,766 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,766 INFO L229 MonitoredProcess]: Starting monitored process 200 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (200)] Waiting until timeout for monitored process [2021-08-27 15:19:33,768 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,774 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,775 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:33,775 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:33,777 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (200)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:33,793 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,793 INFO L229 MonitoredProcess]: Starting monitored process 201 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (201)] Waiting until timeout for monitored process [2021-08-27 15:19:33,795 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,803 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:33,803 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:33,805 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (201)] Ended with exit code 0 [2021-08-27 15:19:33,820 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,820 INFO L229 MonitoredProcess]: Starting monitored process 202 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (202)] Waiting until timeout for monitored process [2021-08-27 15:19:33,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:33,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,829 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:33,829 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:33,829 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (202)] Ended with exit code 0 [2021-08-27 15:19:33,845 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,845 INFO L229 MonitoredProcess]: Starting monitored process 203 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (203)] Waiting until timeout for monitored process [2021-08-27 15:19:33,847 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 [2021-08-27 15:19:33,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,854 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:33,854 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:33,856 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (203)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:33,871 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,872 INFO L229 MonitoredProcess]: Starting monitored process 204 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (204)] Waiting until timeout for monitored process [2021-08-27 15:19:33,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,881 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:33,881 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:33,883 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:33,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (204)] Ended with exit code 0 [2021-08-27 15:19:33,899 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,899 INFO L229 MonitoredProcess]: Starting monitored process 205 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (205)] Waiting until timeout for monitored process [2021-08-27 15:19:33,901 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:33,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:33,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:33,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:33,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:33,915 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:33,915 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:33,927 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:19:33,939 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-08-27 15:19:33,939 INFO L444 ModelExtractionUtils]: 4 out of 31 variables were initially zero. Simplification set additionally 23 variables to zero. [2021-08-27 15:19:33,939 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:33,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:33,940 INFO L229 MonitoredProcess]: Starting monitored process 206 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:33,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (206)] Waiting until timeout for monitored process [2021-08-27 15:19:33,942 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:19:33,948 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 15:19:33,948 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:19:33,948 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~nc_A~0, ULTIMATE.start_main_~j~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~nc_A~0 + 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2021-08-27 15:19:33,964 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (205)] Ended with exit code 0 [2021-08-27 15:19:34,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (206)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:34,160 INFO L297 tatePredicateManager]: 68 out of 68 supporting invariants were superfluous and have been removed [2021-08-27 15:19:34,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:19:34,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 15:19:34,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:19:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:19:34,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 15:19:34,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:19:34,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:19:34,344 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 15:19:34,344 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 81 states and 96 transitions. cyclomatic complexity: 24 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 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) [2021-08-27 15:19:34,358 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 81 states and 96 transitions. cyclomatic complexity: 24. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 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) Result 119 states and 149 transitions. Complement of second has 6 states. [2021-08-27 15:19:34,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-27 15:19:34,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 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) [2021-08-27 15:19:34,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2021-08-27 15:19:34,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 49 letters. Loop has 2 letters. [2021-08-27 15:19:34,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:19:34,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 51 letters. Loop has 2 letters. [2021-08-27 15:19:34,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:19:34,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 49 letters. Loop has 4 letters. [2021-08-27 15:19:34,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:19:34,359 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 149 transitions. [2021-08-27 15:19:34,372 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:19:34,379 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 76 states and 89 transitions. [2021-08-27 15:19:34,379 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2021-08-27 15:19:34,380 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2021-08-27 15:19:34,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 76 states and 89 transitions. [2021-08-27 15:19:34,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:19:34,380 INFO L681 BuchiCegarLoop]: Abstraction has 76 states and 89 transitions. [2021-08-27 15:19:34,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states and 89 transitions. [2021-08-27 15:19:34,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 70. [2021-08-27 15:19:34,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 69 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:34,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 82 transitions. [2021-08-27 15:19:34,384 INFO L704 BuchiCegarLoop]: Abstraction has 70 states and 82 transitions. [2021-08-27 15:19:34,384 INFO L587 BuchiCegarLoop]: Abstraction has 70 states and 82 transitions. [2021-08-27 15:19:34,384 INFO L425 BuchiCegarLoop]: ======== Iteration 22============ [2021-08-27 15:19:34,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states and 82 transitions. [2021-08-27 15:19:34,385 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:19:34,385 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:19:34,385 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:19:34,388 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:19:34,388 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:19:34,388 INFO L791 eck$LassoCheckResult]: Stem: 6521#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 6522#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 6534#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6536#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6545#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6571#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6570#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6569#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6568#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6567#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6566#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6565#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6564#L35-3 assume !(main_~i~0 < 5); 6529#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 6530#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 6517#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6518#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6538#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6563#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6562#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6561#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6559#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6557#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6555#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6554#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6551#L39-3 assume !(main_~i~0 < 5); 6544#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 6537#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 6523#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6524#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6525#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6526#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6560#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6558#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6556#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6553#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6552#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6535#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 6527#L44-4 main_~nc_B~0 := 0; 6528#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6542#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6543#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6540#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6541#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6550#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6549#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6539#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 6519#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 6520#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6581#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 6580#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6579#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 6578#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6577#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 6572#L57-2 [2021-08-27 15:19:34,388 INFO L793 eck$LassoCheckResult]: Loop: 6572#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6573#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 6572#L57-2 [2021-08-27 15:19:34,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:34,389 INFO L82 PathProgramCache]: Analyzing trace with hash 752600730, now seen corresponding path program 5 times [2021-08-27 15:19:34,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:34,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954233726] [2021-08-27 15:19:34,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:34,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:19:34,539 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 12 proven. 20 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-08-27 15:19:34,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:19:34,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954233726] [2021-08-27 15:19:34,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954233726] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:19:34,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475063957] [2021-08-27 15:19:34,539 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 15:19:34,539 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 15:19:34,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:34,553 INFO L229 MonitoredProcess]: Starting monitored process 207 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 15:19:34,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (207)] Waiting until timeout for monitored process [2021-08-27 15:19:35,316 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-08-27 15:19:35,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 15:19:35,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 15:19:35,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:19:35,543 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-08-27 15:19:35,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475063957] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:19:35,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 15:19:35,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2021-08-27 15:19:35,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845570962] [2021-08-27 15:19:35,544 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:19:35,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:35,544 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 9 times [2021-08-27 15:19:35,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:35,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362073197] [2021-08-27 15:19:35,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:35,544 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:35,548 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:35,550 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:35,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:19:35,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-27 15:19:35,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=150, Unknown=0, NotChecked=0, Total=240 [2021-08-27 15:19:35,631 INFO L87 Difference]: Start difference. First operand 70 states and 82 transitions. cyclomatic complexity: 20 Second operand has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:35,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:19:35,687 INFO L93 Difference]: Finished difference Result 76 states and 88 transitions. [2021-08-27 15:19:35,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 15:19:35,688 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 88 transitions. [2021-08-27 15:19:35,688 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:19:35,689 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 74 states and 86 transitions. [2021-08-27 15:19:35,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2021-08-27 15:19:35,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-08-27 15:19:35,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 86 transitions. [2021-08-27 15:19:35,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:19:35,689 INFO L681 BuchiCegarLoop]: Abstraction has 74 states and 86 transitions. [2021-08-27 15:19:35,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 86 transitions. [2021-08-27 15:19:35,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2021-08-27 15:19:35,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 72 states have (on average 1.1666666666666667) internal successors, (84), 71 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:35,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2021-08-27 15:19:35,690 INFO L704 BuchiCegarLoop]: Abstraction has 72 states and 84 transitions. [2021-08-27 15:19:35,690 INFO L587 BuchiCegarLoop]: Abstraction has 72 states and 84 transitions. [2021-08-27 15:19:35,690 INFO L425 BuchiCegarLoop]: ======== Iteration 23============ [2021-08-27 15:19:35,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states and 84 transitions. [2021-08-27 15:19:35,691 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:19:35,691 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:19:35,691 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:19:35,691 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:19:35,691 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:19:35,691 INFO L791 eck$LassoCheckResult]: Stem: 6845#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 6846#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 6858#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6861#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6870#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6893#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6892#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6891#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6890#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6889#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6887#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6885#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6883#L35-3 assume !(main_~i~0 < 5); 6853#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 6854#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 6841#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6842#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6863#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6888#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6886#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6884#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6882#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6881#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6880#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6879#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6876#L39-3 assume !(main_~i~0 < 5); 6869#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 6862#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 6847#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6848#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6849#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6850#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6860#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6897#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6896#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6878#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6877#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6859#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 6851#L44-4 main_~nc_B~0 := 0; 6852#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6867#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6868#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6865#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6866#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6895#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6894#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6875#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6874#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6864#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 6843#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 6844#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6912#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 6911#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6908#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 6905#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6904#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 6898#L57-2 [2021-08-27 15:19:35,691 INFO L793 eck$LassoCheckResult]: Loop: 6898#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6899#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 6898#L57-2 [2021-08-27 15:19:35,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:35,691 INFO L82 PathProgramCache]: Analyzing trace with hash 735069909, now seen corresponding path program 6 times [2021-08-27 15:19:35,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:35,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598021197] [2021-08-27 15:19:35,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:35,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:35,713 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:35,732 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:35,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:35,733 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 10 times [2021-08-27 15:19:35,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:35,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253885206] [2021-08-27 15:19:35,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:35,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:35,782 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:35,784 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:35,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:35,784 INFO L82 PathProgramCache]: Analyzing trace with hash 2027548600, now seen corresponding path program 7 times [2021-08-27 15:19:35,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:35,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596205837] [2021-08-27 15:19:35,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:35,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:35,805 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:35,827 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:42,066 WARN L207 SmtUtils]: Spent 6.15 s on a formula simplification. DAG size of input: 440 DAG size of output: 321 [2021-08-27 15:19:42,867 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:19:42,867 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:19:42,867 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:19:42,867 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:19:42,867 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:19:42,867 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:42,867 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:19:42,867 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:19:42,867 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration23_Lasso [2021-08-27 15:19:42,867 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:19:42,867 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:19:42,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:42,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:42,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:42,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:42,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:42,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:42,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:44,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:44,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:44,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:44,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:44,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:44,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:44,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:44,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:44,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:44,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:44,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:44,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:44,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:44,247 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2021-08-27 15:19:48,932 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:19:48,932 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:19:48,932 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:48,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:48,944 INFO L229 MonitoredProcess]: Starting monitored process 208 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:48,949 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:48,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:48,955 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:48,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:48,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:48,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:48,956 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:48,956 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:48,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (208)] Waiting until timeout for monitored process [2021-08-27 15:19:48,972 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:48,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (208)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:48,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:48,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:48,989 INFO L229 MonitoredProcess]: Starting monitored process 209 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:48,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (209)] Waiting until timeout for monitored process [2021-08-27 15:19:48,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:48,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:48,999 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:48,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:48,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:48,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:48,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:49,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:49,004 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:49,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (209)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:49,020 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,020 INFO L229 MonitoredProcess]: Starting monitored process 210 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (210)] Waiting until timeout for monitored process [2021-08-27 15:19:49,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:49,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:49,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:49,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:49,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:49,029 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:49,029 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:49,032 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:49,047 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (210)] Ended with exit code 0 [2021-08-27 15:19:49,047 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,048 INFO L229 MonitoredProcess]: Starting monitored process 211 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (211)] Waiting until timeout for monitored process [2021-08-27 15:19:49,049 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:49,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:49,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:49,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:49,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:49,057 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:49,057 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:49,059 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:49,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (211)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:49,073 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,074 INFO L229 MonitoredProcess]: Starting monitored process 212 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (212)] Waiting until timeout for monitored process [2021-08-27 15:19:49,075 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:49,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:49,081 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:49,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:49,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:49,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:49,082 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:49,082 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:49,082 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:49,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (212)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:49,098 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,098 INFO L229 MonitoredProcess]: Starting monitored process 213 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (213)] Waiting until timeout for monitored process [2021-08-27 15:19:49,100 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:49,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:49,106 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:49,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:49,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:49,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:49,106 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:49,106 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:49,107 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:49,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (213)] Ended with exit code 0 [2021-08-27 15:19:49,122 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,124 INFO L229 MonitoredProcess]: Starting monitored process 214 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (214)] Waiting until timeout for monitored process [2021-08-27 15:19:49,125 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:49,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:49,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:49,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:49,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:49,132 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:49,132 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:49,134 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:49,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (214)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:49,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,152 INFO L229 MonitoredProcess]: Starting monitored process 215 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (215)] Waiting until timeout for monitored process [2021-08-27 15:19:49,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:49,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:49,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:49,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:49,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:49,161 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:49,161 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:49,163 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:49,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (215)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:49,178 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,179 INFO L229 MonitoredProcess]: Starting monitored process 216 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (216)] Waiting until timeout for monitored process [2021-08-27 15:19:49,181 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:49,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:49,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:49,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:49,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:49,189 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:49,189 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:49,192 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:49,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (216)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:49,207 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,208 INFO L229 MonitoredProcess]: Starting monitored process 217 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (217)] Waiting until timeout for monitored process [2021-08-27 15:19:49,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:49,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:49,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:49,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:49,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:49,217 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:49,217 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:49,219 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:49,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (217)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:49,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,234 INFO L229 MonitoredProcess]: Starting monitored process 218 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (218)] Waiting until timeout for monitored process [2021-08-27 15:19:49,236 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:49,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:49,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:49,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:49,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:49,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:49,242 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:49,242 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:49,243 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:49,257 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (218)] Ended with exit code 0 [2021-08-27 15:19:49,258 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,258 INFO L229 MonitoredProcess]: Starting monitored process 219 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (219)] Waiting until timeout for monitored process [2021-08-27 15:19:49,260 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:49,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:49,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:49,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:49,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:49,267 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:49,268 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:49,269 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:49,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (219)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:49,285 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,285 INFO L229 MonitoredProcess]: Starting monitored process 220 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (220)] Waiting until timeout for monitored process [2021-08-27 15:19:49,287 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:49,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:49,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:49,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:49,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:49,294 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:49,294 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:49,296 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:49,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (220)] Ended with exit code 0 [2021-08-27 15:19:49,311 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,312 INFO L229 MonitoredProcess]: Starting monitored process 221 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (221)] Waiting until timeout for monitored process [2021-08-27 15:19:49,313 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:49,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:49,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:49,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:49,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:49,320 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:49,320 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:49,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:49,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (221)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:49,338 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,339 INFO L229 MonitoredProcess]: Starting monitored process 222 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (222)] Waiting until timeout for monitored process [2021-08-27 15:19:49,340 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:49,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:49,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:49,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:49,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:49,347 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:49,347 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:49,349 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:49,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (222)] Ended with exit code 0 [2021-08-27 15:19:49,364 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,365 INFO L229 MonitoredProcess]: Starting monitored process 223 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (223)] Waiting until timeout for monitored process [2021-08-27 15:19:49,366 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:49,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:49,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:49,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:49,373 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:49,374 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:49,374 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:49,400 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:49,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (223)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:49,417 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,425 INFO L229 MonitoredProcess]: Starting monitored process 224 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,429 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:49,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:49,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:49,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:49,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:49,436 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:49,436 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:49,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (224)] Waiting until timeout for monitored process [2021-08-27 15:19:49,456 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:49,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (224)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:49,472 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,473 INFO L229 MonitoredProcess]: Starting monitored process 225 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (225)] Waiting until timeout for monitored process [2021-08-27 15:19:49,475 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:49,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:49,482 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 15:19:49,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:49,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:49,483 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 15:19:49,483 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:49,500 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:49,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (225)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:49,517 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,518 INFO L229 MonitoredProcess]: Starting monitored process 226 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,526 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:49,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:49,533 INFO L203 nArgumentSynthesizer]: 72 stem disjuncts [2021-08-27 15:19:49,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:49,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:49,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (226)] Waiting until timeout for monitored process [2021-08-27 15:19:49,640 INFO L401 nArgumentSynthesizer]: We have 148 Motzkin's Theorem applications. [2021-08-27 15:19:49,640 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:49,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:49,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (226)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:49,787 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,788 INFO L229 MonitoredProcess]: Starting monitored process 227 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (227)] Waiting until timeout for monitored process [2021-08-27 15:19:49,789 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:49,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:49,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:19:49,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:49,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:49,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:49,796 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:19:49,796 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:19:49,797 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:19:49,812 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (227)] Ended with exit code 0 [2021-08-27 15:19:49,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,813 INFO L229 MonitoredProcess]: Starting monitored process 228 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (228)] Waiting until timeout for monitored process [2021-08-27 15:19:49,814 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:19:49,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:19:49,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:19:49,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:19:49,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:19:49,827 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:19:49,827 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:19:49,838 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:19:49,864 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2021-08-27 15:19:49,865 INFO L444 ModelExtractionUtils]: 3 out of 31 variables were initially zero. Simplification set additionally 23 variables to zero. [2021-08-27 15:19:49,865 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:49,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:49,866 INFO L229 MonitoredProcess]: Starting monitored process 229 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:49,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (229)] Waiting until timeout for monitored process [2021-08-27 15:19:49,867 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:19:49,877 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-08-27 15:19:49,877 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:19:49,877 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_10, ULTIMATE.start_main_~i~0) = 4*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_10 - 5*ULTIMATE.start_main_~i~0 Supporting invariants [-5*ULTIMATE.start_main_~nc_B~0 + 4*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_10 >= 0] [2021-08-27 15:19:49,893 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (228)] Ended with exit code 0 [2021-08-27 15:19:50,165 INFO L297 tatePredicateManager]: 67 out of 70 supporting invariants were superfluous and have been removed [2021-08-27 15:19:50,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:19:50,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 32 conjunts are in the unsatisfiable core [2021-08-27 15:19:50,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:19:50,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (229)] Forceful destruction successful, exit code 0 [2021-08-27 15:19:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:19:51,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 15:19:51,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:19:51,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:19:51,281 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.17 stem predicates 2 loop predicates [2021-08-27 15:19:51,281 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 72 states and 84 transitions. cyclomatic complexity: 20 Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:52,296 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 72 states and 84 transitions. cyclomatic complexity: 20. Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 134 states and 165 transitions. Complement of second has 26 states. [2021-08-27 15:19:52,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 24 states 21 stem states 1 non-accepting loop states 2 accepting loop states [2021-08-27 15:19:52,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:52,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 78 transitions. [2021-08-27 15:19:52,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 78 transitions. Stem has 56 letters. Loop has 2 letters. [2021-08-27 15:19:52,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:19:52,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 78 transitions. Stem has 58 letters. Loop has 2 letters. [2021-08-27 15:19:52,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:19:52,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 78 transitions. Stem has 56 letters. Loop has 4 letters. [2021-08-27 15:19:52,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:19:52,297 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 134 states and 165 transitions. [2021-08-27 15:19:52,298 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:19:52,298 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 134 states to 126 states and 155 transitions. [2021-08-27 15:19:52,299 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2021-08-27 15:19:52,299 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-08-27 15:19:52,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 155 transitions. [2021-08-27 15:19:52,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:19:52,299 INFO L681 BuchiCegarLoop]: Abstraction has 126 states and 155 transitions. [2021-08-27 15:19:52,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 155 transitions. [2021-08-27 15:19:52,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 94. [2021-08-27 15:19:52,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 94 states have (on average 1.1914893617021276) internal successors, (112), 93 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:52,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 112 transitions. [2021-08-27 15:19:52,301 INFO L704 BuchiCegarLoop]: Abstraction has 94 states and 112 transitions. [2021-08-27 15:19:52,301 INFO L587 BuchiCegarLoop]: Abstraction has 94 states and 112 transitions. [2021-08-27 15:19:52,301 INFO L425 BuchiCegarLoop]: ======== Iteration 24============ [2021-08-27 15:19:52,301 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 94 states and 112 transitions. [2021-08-27 15:19:52,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:19:52,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:19:52,301 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:19:52,302 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 5, 5, 5, 5, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:19:52,302 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:19:52,302 INFO L791 eck$LassoCheckResult]: Stem: 7609#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 7610#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 7622#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7625#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7632#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7652#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7650#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7648#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7646#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7644#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7642#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7640#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7638#L35-3 assume !(main_~i~0 < 5); 7617#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 7618#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 7605#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7606#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7627#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7651#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7649#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7647#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7645#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7643#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7641#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7639#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7637#L39-3 assume !(main_~i~0 < 5); 7633#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 7626#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 7611#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7612#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7613#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7614#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7624#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7657#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7656#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7655#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7653#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7654#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7696#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7695#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 7694#L44-4 main_~nc_B~0 := 0; 7693#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7692#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7691#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7690#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7689#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7688#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7660#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7659#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7658#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7628#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 7607#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 7608#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 7698#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 7697#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 7673#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 7671#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 7672#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 7667#L57-2 [2021-08-27 15:19:52,302 INFO L793 eck$LassoCheckResult]: Loop: 7667#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 7668#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 7667#L57-2 [2021-08-27 15:19:52,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:52,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1339949702, now seen corresponding path program 8 times [2021-08-27 15:19:52,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:52,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493891183] [2021-08-27 15:19:52,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:52,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:19:52,389 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 20 proven. 30 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-08-27 15:19:52,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:19:52,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493891183] [2021-08-27 15:19:52,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493891183] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:19:52,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304074149] [2021-08-27 15:19:52,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 15:19:52,390 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 15:19:52,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:52,391 INFO L229 MonitoredProcess]: Starting monitored process 230 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 15:19:52,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (230)] Waiting until timeout for monitored process [2021-08-27 15:19:53,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 15:19:53,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 15:19:53,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 15:19:53,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:19:53,339 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 30 proven. 20 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-08-27 15:19:53,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304074149] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:19:53,339 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 15:19:53,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2021-08-27 15:19:53,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61776179] [2021-08-27 15:19:53,339 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:19:53,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:53,340 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 11 times [2021-08-27 15:19:53,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:53,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133648496] [2021-08-27 15:19:53,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:53,340 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:53,345 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:53,346 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:53,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:19:53,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-27 15:19:53,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=216, Unknown=0, NotChecked=0, Total=342 [2021-08-27 15:19:53,416 INFO L87 Difference]: Start difference. First operand 94 states and 112 transitions. cyclomatic complexity: 27 Second operand has 19 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 19 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:53,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:19:53,560 INFO L93 Difference]: Finished difference Result 126 states and 155 transitions. [2021-08-27 15:19:53,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-27 15:19:53,561 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 155 transitions. [2021-08-27 15:19:53,562 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-08-27 15:19:53,562 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 124 states and 153 transitions. [2021-08-27 15:19:53,562 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2021-08-27 15:19:53,562 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 55 [2021-08-27 15:19:53,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 124 states and 153 transitions. [2021-08-27 15:19:53,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:19:53,563 INFO L681 BuchiCegarLoop]: Abstraction has 124 states and 153 transitions. [2021-08-27 15:19:53,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states and 153 transitions. [2021-08-27 15:19:53,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 96. [2021-08-27 15:19:53,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.1875) internal successors, (114), 95 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:53,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 114 transitions. [2021-08-27 15:19:53,564 INFO L704 BuchiCegarLoop]: Abstraction has 96 states and 114 transitions. [2021-08-27 15:19:53,564 INFO L587 BuchiCegarLoop]: Abstraction has 96 states and 114 transitions. [2021-08-27 15:19:53,564 INFO L425 BuchiCegarLoop]: ======== Iteration 25============ [2021-08-27 15:19:53,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 114 transitions. [2021-08-27 15:19:53,565 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:19:53,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:19:53,565 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:19:53,565 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 5, 5, 5, 5, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:19:53,565 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:19:53,565 INFO L791 eck$LassoCheckResult]: Stem: 8030#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 8031#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 8043#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8046#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8055#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8075#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8073#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8071#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8069#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8067#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8065#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8063#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8061#L35-3 assume !(main_~i~0 < 5); 8038#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 8039#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 8028#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8029#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8048#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8074#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8072#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8070#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8068#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8066#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8064#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8062#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8060#L39-3 assume !(main_~i~0 < 5); 8056#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 8047#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 8032#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8033#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8034#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8035#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8045#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8080#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8078#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8079#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8095#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8094#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 8093#L44-4 main_~nc_B~0 := 0; 8052#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8053#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8092#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8088#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8089#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8084#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8085#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8118#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8117#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8082#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8081#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8049#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 8026#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 8027#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8102#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 8103#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8105#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 8107#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8106#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 8098#L57-2 [2021-08-27 15:19:53,566 INFO L793 eck$LassoCheckResult]: Loop: 8098#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8099#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 8098#L57-2 [2021-08-27 15:19:53,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:53,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1067820112, now seen corresponding path program 9 times [2021-08-27 15:19:53,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:53,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971143197] [2021-08-27 15:19:53,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:53,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:19:53,680 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-08-27 15:19:53,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:19:53,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971143197] [2021-08-27 15:19:53,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971143197] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:19:53,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098727056] [2021-08-27 15:19:53,681 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 15:19:53,681 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 15:19:53,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:53,685 INFO L229 MonitoredProcess]: Starting monitored process 231 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 15:19:53,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (231)] Waiting until timeout for monitored process [2021-08-27 15:19:54,461 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-08-27 15:19:54,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 15:19:54,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 15:19:54,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:19:54,483 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 15:19:54,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2021-08-27 15:19:54,902 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-08-27 15:19:54,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098727056] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:19:54,903 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 15:19:54,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2021-08-27 15:19:54,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092489494] [2021-08-27 15:19:54,903 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:19:54,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:54,904 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 12 times [2021-08-27 15:19:54,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:54,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331361902] [2021-08-27 15:19:54,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:54,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:54,920 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:54,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:54,938 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:55,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:19:55,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 15:19:55,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2021-08-27 15:19:55,011 INFO L87 Difference]: Start difference. First operand 96 states and 114 transitions. cyclomatic complexity: 27 Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:55,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:19:55,045 INFO L93 Difference]: Finished difference Result 87 states and 99 transitions. [2021-08-27 15:19:55,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 15:19:55,045 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 87 states and 99 transitions. [2021-08-27 15:19:55,046 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:19:55,046 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 87 states to 72 states and 82 transitions. [2021-08-27 15:19:55,046 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2021-08-27 15:19:55,046 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2021-08-27 15:19:55,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 82 transitions. [2021-08-27 15:19:55,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:19:55,046 INFO L681 BuchiCegarLoop]: Abstraction has 72 states and 82 transitions. [2021-08-27 15:19:55,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 82 transitions. [2021-08-27 15:19:55,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-08-27 15:19:55,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 72 states have (on average 1.1388888888888888) internal successors, (82), 71 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:19:55,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2021-08-27 15:19:55,047 INFO L704 BuchiCegarLoop]: Abstraction has 72 states and 82 transitions. [2021-08-27 15:19:55,047 INFO L587 BuchiCegarLoop]: Abstraction has 72 states and 82 transitions. [2021-08-27 15:19:55,047 INFO L425 BuchiCegarLoop]: ======== Iteration 26============ [2021-08-27 15:19:55,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states and 82 transitions. [2021-08-27 15:19:55,048 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:19:55,048 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:19:55,048 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:19:55,048 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:19:55,048 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:19:55,048 INFO L791 eck$LassoCheckResult]: Stem: 8403#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 8404#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 8416#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8426#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8418#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8419#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8456#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8455#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8454#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8453#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8452#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8451#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8450#L35-3 assume !(main_~i~0 < 5); 8409#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 8410#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 8420#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8423#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8399#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8400#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8449#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8447#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8444#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8441#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8438#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8435#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8432#L39-3 assume !(main_~i~0 < 5); 8427#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 8421#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 8422#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8417#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8405#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8406#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8446#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8443#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8440#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8437#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8434#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8431#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 8407#L44-4 main_~nc_B~0 := 0; 8408#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8424#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8425#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8448#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8445#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8442#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8439#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8436#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8433#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8430#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 8401#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 8402#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8465#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 8464#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8428#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 8429#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8412#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 8463#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8462#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 8460#L57-2 [2021-08-27 15:19:55,048 INFO L793 eck$LassoCheckResult]: Loop: 8460#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8461#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 8460#L57-2 [2021-08-27 15:19:55,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:55,048 INFO L82 PathProgramCache]: Analyzing trace with hash 252543160, now seen corresponding path program 10 times [2021-08-27 15:19:55,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:55,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247260948] [2021-08-27 15:19:55,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:55,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:55,065 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:55,081 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:55,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:55,096 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 13 times [2021-08-27 15:19:55,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:55,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803791638] [2021-08-27 15:19:55,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:55,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:55,101 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:55,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:55,102 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:55,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:55,103 INFO L82 PathProgramCache]: Analyzing trace with hash -2119156517, now seen corresponding path program 11 times [2021-08-27 15:19:55,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:55,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846432335] [2021-08-27 15:19:55,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:55,103 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:55,137 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:55,172 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:20:04,028 WARN L207 SmtUtils]: Spent 8.80 s on a formula simplification. DAG size of input: 463 DAG size of output: 334 [2021-08-27 15:20:04,932 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:20:04,932 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:20:04,932 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:20:04,932 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:20:04,932 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:20:04,932 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:04,932 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:20:04,932 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:20:04,932 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration26_Lasso [2021-08-27 15:20:04,932 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:20:04,932 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:20:04,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:04,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:04,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:04,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:06,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:06,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:06,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:06,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:06,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:06,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:06,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:06,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:06,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:06,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:06,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:06,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:06,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:06,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:06,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:06,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:06,845 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-08-27 15:20:09,876 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:20:09,877 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:20:09,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:09,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:09,878 INFO L229 MonitoredProcess]: Starting monitored process 232 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:09,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (232)] Waiting until timeout for monitored process [2021-08-27 15:20:09,880 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:09,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:09,896 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:09,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:09,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:09,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:09,896 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:09,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:09,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:09,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (232)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:09,925 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:09,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:09,926 INFO L229 MonitoredProcess]: Starting monitored process 233 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:09,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (233)] Waiting until timeout for monitored process [2021-08-27 15:20:09,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:09,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:09,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:09,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:09,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:09,936 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:09,936 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:09,945 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:09,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (233)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:09,965 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:09,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:09,966 INFO L229 MonitoredProcess]: Starting monitored process 234 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:09,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (234)] Waiting until timeout for monitored process [2021-08-27 15:20:09,968 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:09,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:09,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:09,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:09,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:09,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:09,975 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:09,975 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:09,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:10,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (234)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:10,006 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:10,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:10,007 INFO L229 MonitoredProcess]: Starting monitored process 235 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:10,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (235)] Waiting until timeout for monitored process [2021-08-27 15:20:10,009 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:10,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:10,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:10,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:10,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:10,018 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:10,018 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:10,020 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:10,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (235)] Ended with exit code 0 [2021-08-27 15:20:10,036 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:10,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:10,037 INFO L229 MonitoredProcess]: Starting monitored process 236 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:10,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (236)] Waiting until timeout for monitored process [2021-08-27 15:20:10,039 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:10,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:10,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:10,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:10,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:10,047 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:10,047 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:10,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:10,066 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (236)] Ended with exit code 0 [2021-08-27 15:20:10,066 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:10,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:10,066 INFO L229 MonitoredProcess]: Starting monitored process 237 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:10,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (237)] Waiting until timeout for monitored process [2021-08-27 15:20:10,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:10,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:10,074 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:10,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:10,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:10,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:10,075 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:10,075 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:10,075 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:10,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (237)] Ended with exit code 0 [2021-08-27 15:20:10,090 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:10,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:10,091 INFO L229 MonitoredProcess]: Starting monitored process 238 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:10,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (238)] Waiting until timeout for monitored process [2021-08-27 15:20:10,093 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:10,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:10,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:10,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:10,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:10,099 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:10,100 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:10,101 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:10,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (238)] Ended with exit code 0 [2021-08-27 15:20:10,116 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:10,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:10,117 INFO L229 MonitoredProcess]: Starting monitored process 239 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:10,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (239)] Waiting until timeout for monitored process [2021-08-27 15:20:10,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:10,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:10,125 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 15:20:10,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:10,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:10,126 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 15:20:10,126 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:10,143 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:10,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (239)] Ended with exit code 0 [2021-08-27 15:20:10,159 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:10,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:10,159 INFO L229 MonitoredProcess]: Starting monitored process 240 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:10,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (240)] Waiting until timeout for monitored process [2021-08-27 15:20:10,161 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:10,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:10,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:10,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:10,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:10,169 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:10,169 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:10,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:10,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (240)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:10,187 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:10,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:10,188 INFO L229 MonitoredProcess]: Starting monitored process 241 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:10,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (241)] Waiting until timeout for monitored process [2021-08-27 15:20:10,190 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:10,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:10,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:10,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:10,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:10,197 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:10,197 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:10,200 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:10,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (241)] Ended with exit code 0 [2021-08-27 15:20:10,215 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:10,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:10,216 INFO L229 MonitoredProcess]: Starting monitored process 242 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:10,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (242)] Waiting until timeout for monitored process [2021-08-27 15:20:10,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:10,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:10,224 INFO L203 nArgumentSynthesizer]: 36 stem disjuncts [2021-08-27 15:20:10,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:10,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:10,293 INFO L401 nArgumentSynthesizer]: We have 76 Motzkin's Theorem applications. [2021-08-27 15:20:10,293 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:10,370 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:10,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (242)] Ended with exit code 0 [2021-08-27 15:20:10,386 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:10,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:10,387 INFO L229 MonitoredProcess]: Starting monitored process 243 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:10,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (243)] Waiting until timeout for monitored process [2021-08-27 15:20:10,389 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:10,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:10,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:10,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:10,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:10,396 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:10,396 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:10,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:10,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (243)] Ended with exit code 0 [2021-08-27 15:20:10,412 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:10,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:10,413 INFO L229 MonitoredProcess]: Starting monitored process 244 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:10,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (244)] Waiting until timeout for monitored process [2021-08-27 15:20:10,415 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:10,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:10,421 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 15:20:10,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:10,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:10,422 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 15:20:10,422 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:10,424 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:10,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (244)] Ended with exit code 0 [2021-08-27 15:20:10,439 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:10,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:10,440 INFO L229 MonitoredProcess]: Starting monitored process 245 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:10,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (245)] Waiting until timeout for monitored process [2021-08-27 15:20:10,442 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:10,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:10,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:10,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:10,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:10,449 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:10,449 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:10,451 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:10,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (245)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:10,466 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:10,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:10,466 INFO L229 MonitoredProcess]: Starting monitored process 246 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:10,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (246)] Waiting until timeout for monitored process [2021-08-27 15:20:10,468 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:10,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:10,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:10,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:10,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:10,481 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:10,481 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:10,493 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:20:10,509 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-08-27 15:20:10,509 INFO L444 ModelExtractionUtils]: 18 out of 31 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-08-27 15:20:10,509 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:10,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:10,510 INFO L229 MonitoredProcess]: Starting monitored process 247 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:10,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (247)] Waiting until timeout for monitored process [2021-08-27 15:20:10,512 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:20:10,519 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 15:20:10,519 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:20:10,519 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_11, ULTIMATE.start_main_~i~0) = 7*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_11 - 6*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-08-27 15:20:10,535 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (246)] Ended with exit code 0 [2021-08-27 15:20:10,802 INFO L297 tatePredicateManager]: 73 out of 77 supporting invariants were superfluous and have been removed [2021-08-27 15:20:10,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:10,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 36 conjunts are in the unsatisfiable core [2021-08-27 15:20:10,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:10,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (247)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:11,794 WARN L261 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-27 15:20:11,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:11,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:20:11,847 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.11 stem predicates 2 loop predicates [2021-08-27 15:20:11,847 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 72 states and 82 transitions. cyclomatic complexity: 16 Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:12,066 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 72 states and 82 transitions. cyclomatic complexity: 16. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 86 states and 103 transitions. Complement of second has 16 states. [2021-08-27 15:20:12,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 11 stem states 1 non-accepting loop states 2 accepting loop states [2021-08-27 15:20:12,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:12,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 41 transitions. [2021-08-27 15:20:12,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 41 transitions. Stem has 58 letters. Loop has 2 letters. [2021-08-27 15:20:12,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:20:12,067 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 15:20:12,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:12,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:12,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 36 conjunts are in the unsatisfiable core [2021-08-27 15:20:12,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:12,976 WARN L261 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-27 15:20:12,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:13,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:20:13,025 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.11 stem predicates 2 loop predicates [2021-08-27 15:20:13,025 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 72 states and 82 transitions. cyclomatic complexity: 16 Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:13,164 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 72 states and 82 transitions. cyclomatic complexity: 16. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 86 states and 103 transitions. Complement of second has 16 states. [2021-08-27 15:20:13,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 11 stem states 1 non-accepting loop states 2 accepting loop states [2021-08-27 15:20:13,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:13,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 41 transitions. [2021-08-27 15:20:13,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 41 transitions. Stem has 58 letters. Loop has 2 letters. [2021-08-27 15:20:13,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:20:13,165 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 15:20:13,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:13,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 36 conjunts are in the unsatisfiable core [2021-08-27 15:20:13,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:14,137 WARN L261 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-27 15:20:14,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:14,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:20:14,193 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.11 stem predicates 2 loop predicates [2021-08-27 15:20:14,193 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 72 states and 82 transitions. cyclomatic complexity: 16 Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:14,358 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 72 states and 82 transitions. cyclomatic complexity: 16. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 96 states and 117 transitions. Complement of second has 17 states. [2021-08-27 15:20:14,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 11 stem states 1 non-accepting loop states 2 accepting loop states [2021-08-27 15:20:14,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:14,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 45 transitions. [2021-08-27 15:20:14,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 45 transitions. Stem has 58 letters. Loop has 2 letters. [2021-08-27 15:20:14,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:20:14,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 45 transitions. Stem has 60 letters. Loop has 2 letters. [2021-08-27 15:20:14,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:20:14,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 45 transitions. Stem has 58 letters. Loop has 4 letters. [2021-08-27 15:20:14,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:20:14,359 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 117 transitions. [2021-08-27 15:20:14,360 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:20:14,360 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 90 states and 107 transitions. [2021-08-27 15:20:14,360 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2021-08-27 15:20:14,360 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2021-08-27 15:20:14,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 107 transitions. [2021-08-27 15:20:14,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:20:14,360 INFO L681 BuchiCegarLoop]: Abstraction has 90 states and 107 transitions. [2021-08-27 15:20:14,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 107 transitions. [2021-08-27 15:20:14,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 76. [2021-08-27 15:20:14,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 76 states have (on average 1.1578947368421053) internal successors, (88), 75 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:14,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2021-08-27 15:20:14,362 INFO L704 BuchiCegarLoop]: Abstraction has 76 states and 88 transitions. [2021-08-27 15:20:14,362 INFO L587 BuchiCegarLoop]: Abstraction has 76 states and 88 transitions. [2021-08-27 15:20:14,362 INFO L425 BuchiCegarLoop]: ======== Iteration 27============ [2021-08-27 15:20:14,362 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 76 states and 88 transitions. [2021-08-27 15:20:14,362 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:20:14,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:20:14,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:20:14,363 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:20:14,363 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:20:14,363 INFO L791 eck$LassoCheckResult]: Stem: 9739#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 9740#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 9752#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9762#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9754#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9755#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9792#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9791#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9790#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9789#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9788#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9787#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9786#L35-3 assume !(main_~i~0 < 5); 9745#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 9746#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 9756#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9759#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9735#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9736#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9785#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9783#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9780#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9777#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9774#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9771#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9768#L39-3 assume !(main_~i~0 < 5); 9763#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 9757#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 9758#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9753#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9741#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9742#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9782#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9779#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9776#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9773#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9770#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9767#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 9743#L44-4 main_~nc_B~0 := 0; 9744#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9760#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9761#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9784#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9781#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9778#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9775#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9772#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9769#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9766#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 9737#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 9738#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9803#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 9806#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9802#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 9801#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9800#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 9799#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9797#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 9795#L57-2 [2021-08-27 15:20:14,363 INFO L793 eck$LassoCheckResult]: Loop: 9795#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9796#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 9795#L57-2 [2021-08-27 15:20:14,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:14,363 INFO L82 PathProgramCache]: Analyzing trace with hash 2025703480, now seen corresponding path program 12 times [2021-08-27 15:20:14,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:20:14,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351488401] [2021-08-27 15:20:14,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:20:14,364 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:20:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:14,381 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:20:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:14,398 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:20:14,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:14,399 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 14 times [2021-08-27 15:20:14,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:20:14,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013349212] [2021-08-27 15:20:14,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:20:14,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:20:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:14,405 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:20:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:14,406 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:20:14,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:14,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1080861787, now seen corresponding path program 13 times [2021-08-27 15:20:14,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:20:14,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402385915] [2021-08-27 15:20:14,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:20:14,407 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:20:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:14,424 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:20:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:14,447 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:20:20,034 WARN L207 SmtUtils]: Spent 5.53 s on a formula simplification. DAG size of input: 463 DAG size of output: 330 [2021-08-27 15:20:20,790 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:20:20,791 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:20:20,791 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:20:20,791 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:20:20,791 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:20:20,791 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:20,791 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:20:20,791 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:20:20,791 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration27_Lasso [2021-08-27 15:20:20,791 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:20:20,791 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:20:20,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:20,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:20,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:20,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:20,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:20,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:22,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:22,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:22,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:22,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:22,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:22,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:22,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:22,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:22,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:22,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:22,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:22,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:22,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:22,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:22,394 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-08-27 15:20:25,488 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:20:25,488 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:20:25,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:25,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:25,496 INFO L229 MonitoredProcess]: Starting monitored process 248 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:25,501 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:25,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (248)] Waiting until timeout for monitored process [2021-08-27 15:20:25,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:25,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:25,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:25,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:25,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:25,507 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:25,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:25,508 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:25,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (248)] Ended with exit code 0 [2021-08-27 15:20:25,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:25,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:25,524 INFO L229 MonitoredProcess]: Starting monitored process 249 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:25,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (249)] Waiting until timeout for monitored process [2021-08-27 15:20:25,526 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:25,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:25,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:25,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:25,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:25,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:25,545 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:25,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:25,562 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:25,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (249)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:25,578 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:25,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:25,579 INFO L229 MonitoredProcess]: Starting monitored process 250 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:25,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (250)] Waiting until timeout for monitored process [2021-08-27 15:20:25,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:25,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:25,587 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:25,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:25,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:25,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:25,588 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:25,588 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:25,597 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:25,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (250)] Ended with exit code 0 [2021-08-27 15:20:25,612 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:25,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:25,613 INFO L229 MonitoredProcess]: Starting monitored process 251 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:25,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (251)] Waiting until timeout for monitored process [2021-08-27 15:20:25,615 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:25,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:25,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:25,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:25,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:25,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:25,621 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:25,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:25,622 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:25,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (251)] Ended with exit code 0 [2021-08-27 15:20:25,637 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:25,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:25,638 INFO L229 MonitoredProcess]: Starting monitored process 252 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:25,640 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:25,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (252)] Waiting until timeout for monitored process [2021-08-27 15:20:25,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:25,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:25,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:25,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:25,648 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:25,648 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:25,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:25,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (252)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:25,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:25,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:25,665 INFO L229 MonitoredProcess]: Starting monitored process 253 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:25,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (253)] Waiting until timeout for monitored process [2021-08-27 15:20:25,667 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:25,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:25,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:25,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:25,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:25,674 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:25,674 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:25,676 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:25,691 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (253)] Ended with exit code 0 [2021-08-27 15:20:25,691 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:25,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:25,692 INFO L229 MonitoredProcess]: Starting monitored process 254 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:25,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (254)] Waiting until timeout for monitored process [2021-08-27 15:20:25,695 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:25,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:25,701 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 15:20:25,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:25,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:25,702 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 15:20:25,702 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:25,704 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:25,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (254)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:25,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:25,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:25,720 INFO L229 MonitoredProcess]: Starting monitored process 255 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:25,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (255)] Waiting until timeout for monitored process [2021-08-27 15:20:25,722 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:25,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:25,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:25,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:25,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:25,729 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:25,729 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:25,731 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:25,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (255)] Ended with exit code 0 [2021-08-27 15:20:25,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:25,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:25,749 INFO L229 MonitoredProcess]: Starting monitored process 256 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:25,757 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:25,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (256)] Waiting until timeout for monitored process [2021-08-27 15:20:25,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:25,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:25,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:25,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:25,764 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:25,764 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:25,766 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:25,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (256)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:25,782 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:25,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:25,782 INFO L229 MonitoredProcess]: Starting monitored process 257 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:25,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (257)] Waiting until timeout for monitored process [2021-08-27 15:20:25,784 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:25,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:25,790 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:25,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:25,790 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:25,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:25,791 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:25,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:25,791 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:25,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (257)] Ended with exit code 0 [2021-08-27 15:20:25,807 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:25,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:25,807 INFO L229 MonitoredProcess]: Starting monitored process 258 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:25,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (258)] Waiting until timeout for monitored process [2021-08-27 15:20:25,809 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:25,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:25,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:25,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:25,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:25,817 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:25,817 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:25,819 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:25,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (258)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:25,834 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:25,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:25,835 INFO L229 MonitoredProcess]: Starting monitored process 259 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:25,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (259)] Waiting until timeout for monitored process [2021-08-27 15:20:25,836 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:25,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:25,843 INFO L203 nArgumentSynthesizer]: 36 stem disjuncts [2021-08-27 15:20:25,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:25,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:25,911 INFO L401 nArgumentSynthesizer]: We have 76 Motzkin's Theorem applications. [2021-08-27 15:20:25,912 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:25,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:26,005 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (259)] Ended with exit code 0 [2021-08-27 15:20:26,005 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:26,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:26,006 INFO L229 MonitoredProcess]: Starting monitored process 260 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:26,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (260)] Waiting until timeout for monitored process [2021-08-27 15:20:26,007 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:26,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:26,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:26,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:26,014 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:26,015 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:26,015 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:26,016 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:26,031 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (260)] Ended with exit code 0 [2021-08-27 15:20:26,031 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:26,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:26,032 INFO L229 MonitoredProcess]: Starting monitored process 261 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:26,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (261)] Waiting until timeout for monitored process [2021-08-27 15:20:26,034 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:26,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:26,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:26,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:26,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:26,042 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:26,042 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:26,045 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:26,061 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (261)] Ended with exit code 0 [2021-08-27 15:20:26,061 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:26,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:26,061 INFO L229 MonitoredProcess]: Starting monitored process 262 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:26,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (262)] Waiting until timeout for monitored process [2021-08-27 15:20:26,063 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 [2021-08-27 15:20:26,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:26,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:26,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:26,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:26,070 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:26,070 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:26,072 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:26,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (262)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:26,087 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:26,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:26,088 INFO L229 MonitoredProcess]: Starting monitored process 263 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:26,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (263)] Waiting until timeout for monitored process [2021-08-27 15:20:26,118 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:26,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:26,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:26,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:26,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:26,125 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:26,125 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:26,127 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:26,142 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (263)] Ended with exit code 0 [2021-08-27 15:20:26,142 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:26,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:26,143 INFO L229 MonitoredProcess]: Starting monitored process 264 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:26,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (264)] Waiting until timeout for monitored process [2021-08-27 15:20:26,144 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:26,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:26,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:26,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:26,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:26,158 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:26,158 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:26,171 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:20:26,188 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-08-27 15:20:26,188 INFO L444 ModelExtractionUtils]: 17 out of 31 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-08-27 15:20:26,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:26,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:26,189 INFO L229 MonitoredProcess]: Starting monitored process 265 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:26,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (265)] Waiting until timeout for monitored process [2021-08-27 15:20:26,191 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:20:26,209 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 15:20:26,209 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:20:26,209 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_12) = -2*ULTIMATE.start_main_~j~0 + 3*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_12 Supporting invariants [] [2021-08-27 15:20:26,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (264)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:26,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (265)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:26,554 INFO L297 tatePredicateManager]: 87 out of 89 supporting invariants were superfluous and have been removed [2021-08-27 15:20:26,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:26,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 34 conjunts are in the unsatisfiable core [2021-08-27 15:20:26,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:27,369 WARN L261 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 15:20:27,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:27,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:20:27,407 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.11 stem predicates 2 loop predicates [2021-08-27 15:20:27,407 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 76 states and 88 transitions. cyclomatic complexity: 18 Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:27,570 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 76 states and 88 transitions. cyclomatic complexity: 18. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 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 90 states and 109 transitions. Complement of second has 15 states. [2021-08-27 15:20:27,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 10 stem states 1 non-accepting loop states 2 accepting loop states [2021-08-27 15:20:27,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:27,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 41 transitions. [2021-08-27 15:20:27,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 41 transitions. Stem has 58 letters. Loop has 2 letters. [2021-08-27 15:20:27,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:20:27,572 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 15:20:27,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:27,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 34 conjunts are in the unsatisfiable core [2021-08-27 15:20:27,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:28,381 WARN L261 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 15:20:28,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:28,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:20:28,419 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.11 stem predicates 2 loop predicates [2021-08-27 15:20:28,420 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 76 states and 88 transitions. cyclomatic complexity: 18 Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:28,573 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 76 states and 88 transitions. cyclomatic complexity: 18. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 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 90 states and 109 transitions. Complement of second has 15 states. [2021-08-27 15:20:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 10 stem states 1 non-accepting loop states 2 accepting loop states [2021-08-27 15:20:28,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:28,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 41 transitions. [2021-08-27 15:20:28,574 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 41 transitions. Stem has 58 letters. Loop has 2 letters. [2021-08-27 15:20:28,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:20:28,574 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 15:20:28,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:28,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 34 conjunts are in the unsatisfiable core [2021-08-27 15:20:28,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:29,357 WARN L261 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 15:20:29,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:29,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:20:29,407 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.11 stem predicates 2 loop predicates [2021-08-27 15:20:29,408 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 76 states and 88 transitions. cyclomatic complexity: 18 Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:29,708 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 76 states and 88 transitions. cyclomatic complexity: 18. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 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 110 states and 138 transitions. Complement of second has 18 states. [2021-08-27 15:20:29,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 11 stem states 1 non-accepting loop states 2 accepting loop states [2021-08-27 15:20:29,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:29,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 49 transitions. [2021-08-27 15:20:29,710 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 49 transitions. Stem has 58 letters. Loop has 2 letters. [2021-08-27 15:20:29,710 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:20:29,710 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 49 transitions. Stem has 60 letters. Loop has 2 letters. [2021-08-27 15:20:29,710 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:20:29,710 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 49 transitions. Stem has 58 letters. Loop has 4 letters. [2021-08-27 15:20:29,710 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:20:29,710 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 110 states and 138 transitions. [2021-08-27 15:20:29,711 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:20:29,711 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 110 states to 102 states and 124 transitions. [2021-08-27 15:20:29,712 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2021-08-27 15:20:29,712 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2021-08-27 15:20:29,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 102 states and 124 transitions. [2021-08-27 15:20:29,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:20:29,712 INFO L681 BuchiCegarLoop]: Abstraction has 102 states and 124 transitions. [2021-08-27 15:20:29,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states and 124 transitions. [2021-08-27 15:20:29,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 81. [2021-08-27 15:20:29,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 81 states have (on average 1.1728395061728396) internal successors, (95), 80 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:29,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 95 transitions. [2021-08-27 15:20:29,715 INFO L704 BuchiCegarLoop]: Abstraction has 81 states and 95 transitions. [2021-08-27 15:20:29,715 INFO L587 BuchiCegarLoop]: Abstraction has 81 states and 95 transitions. [2021-08-27 15:20:29,715 INFO L425 BuchiCegarLoop]: ======== Iteration 28============ [2021-08-27 15:20:29,715 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states and 95 transitions. [2021-08-27 15:20:29,715 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:20:29,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:20:29,715 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:20:29,716 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:20:29,716 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:20:29,716 INFO L791 eck$LassoCheckResult]: Stem: 11146#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 11147#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 11159#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11169#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11161#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11162#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11200#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11199#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11198#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11197#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11196#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11195#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11194#L35-3 assume !(main_~i~0 < 5); 11152#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 11153#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 11163#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11166#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11142#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11143#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11193#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11191#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11188#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11185#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11182#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11179#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11176#L39-3 assume !(main_~i~0 < 5); 11170#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 11164#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 11165#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11160#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11148#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11149#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11190#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11187#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11184#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11181#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11178#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11175#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 11150#L44-4 main_~nc_B~0 := 0; 11151#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11167#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11168#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11192#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11189#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11186#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11183#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11180#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11177#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11174#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 11144#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 11145#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11204#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 11203#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11205#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 11221#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11158#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 11172#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11219#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 11208#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11206#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 11201#L57-2 [2021-08-27 15:20:29,716 INFO L793 eck$LassoCheckResult]: Loop: 11201#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11202#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 11201#L57-2 [2021-08-27 15:20:29,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:29,717 INFO L82 PathProgramCache]: Analyzing trace with hash -2119154595, now seen corresponding path program 14 times [2021-08-27 15:20:29,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:20:29,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969333420] [2021-08-27 15:20:29,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:20:29,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:20:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:29,757 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:20:29,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:29,797 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:20:29,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:29,797 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 15 times [2021-08-27 15:20:29,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:20:29,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768211201] [2021-08-27 15:20:29,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:20:29,798 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:20:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:29,803 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:20:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:29,805 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:20:29,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:29,805 INFO L82 PathProgramCache]: Analyzing trace with hash -693064896, now seen corresponding path program 15 times [2021-08-27 15:20:29,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:20:29,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663677215] [2021-08-27 15:20:29,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:20:29,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:20:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:29,899 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 12 proven. 38 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-08-27 15:20:29,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:20:29,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663677215] [2021-08-27 15:20:29,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663677215] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:20:29,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809576151] [2021-08-27 15:20:29,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 15:20:29,900 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 15:20:29,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:29,901 INFO L229 MonitoredProcess]: Starting monitored process 266 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 15:20:29,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (266)] Waiting until timeout for monitored process [2021-08-27 15:20:31,342 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-08-27 15:20:31,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 15:20:31,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 15:20:31,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:31,652 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 16 proven. 32 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-08-27 15:20:31,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809576151] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:20:31,652 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 15:20:31,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 23 [2021-08-27 15:20:31,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688901400] [2021-08-27 15:20:31,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:20:31,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-27 15:20:31,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2021-08-27 15:20:31,723 INFO L87 Difference]: Start difference. First operand 81 states and 95 transitions. cyclomatic complexity: 20 Second operand has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:32,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:20:32,033 INFO L93 Difference]: Finished difference Result 103 states and 119 transitions. [2021-08-27 15:20:32,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-27 15:20:32,033 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 103 states and 119 transitions. [2021-08-27 15:20:32,038 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:20:32,038 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 103 states to 90 states and 102 transitions. [2021-08-27 15:20:32,038 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2021-08-27 15:20:32,038 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2021-08-27 15:20:32,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 102 transitions. [2021-08-27 15:20:32,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:20:32,038 INFO L681 BuchiCegarLoop]: Abstraction has 90 states and 102 transitions. [2021-08-27 15:20:32,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 102 transitions. [2021-08-27 15:20:32,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 85. [2021-08-27 15:20:32,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 85 states have (on average 1.1411764705882352) internal successors, (97), 84 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:32,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 97 transitions. [2021-08-27 15:20:32,040 INFO L704 BuchiCegarLoop]: Abstraction has 85 states and 97 transitions. [2021-08-27 15:20:32,040 INFO L587 BuchiCegarLoop]: Abstraction has 85 states and 97 transitions. [2021-08-27 15:20:32,040 INFO L425 BuchiCegarLoop]: ======== Iteration 29============ [2021-08-27 15:20:32,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 97 transitions. [2021-08-27 15:20:32,040 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:20:32,040 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:20:32,040 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:20:32,040 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:20:32,040 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:20:32,040 INFO L791 eck$LassoCheckResult]: Stem: 11567#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 11568#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 11579#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11581#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11588#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11620#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11619#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11618#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11617#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11616#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11615#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11614#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11613#L35-3 assume !(main_~i~0 < 5); 11573#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 11574#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 11582#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11585#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11563#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11564#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11612#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11610#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11607#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11604#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11601#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11598#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11595#L39-3 assume !(main_~i~0 < 5); 11589#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 11583#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 11584#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11580#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11569#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11570#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11609#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11606#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11603#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11600#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11597#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11594#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 11571#L44-4 main_~nc_B~0 := 0; 11572#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11586#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11587#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11611#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11608#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11605#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11602#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11599#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11596#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11593#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 11565#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 11566#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11631#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 11628#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11625#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 11626#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11638#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 11575#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11576#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 11627#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11623#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 11622#L57-2 [2021-08-27 15:20:32,041 INFO L793 eck$LassoCheckResult]: Loop: 11622#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11621#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 11622#L57-2 [2021-08-27 15:20:32,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:32,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1440943267, now seen corresponding path program 16 times [2021-08-27 15:20:32,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:20:32,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434355602] [2021-08-27 15:20:32,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:20:32,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:20:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:32,061 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:20:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:32,078 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:20:32,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:32,079 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 16 times [2021-08-27 15:20:32,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:20:32,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50539145] [2021-08-27 15:20:32,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:20:32,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:20:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:32,085 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:20:32,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:32,087 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:20:32,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:32,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1767007680, now seen corresponding path program 17 times [2021-08-27 15:20:32,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:20:32,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117247010] [2021-08-27 15:20:32,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:20:32,087 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:20:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:32,211 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 8 proven. 42 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-08-27 15:20:32,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:20:32,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117247010] [2021-08-27 15:20:32,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117247010] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:20:32,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763553302] [2021-08-27 15:20:32,212 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 15:20:32,212 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 15:20:32,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:32,213 INFO L229 MonitoredProcess]: Starting monitored process 267 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 15:20:32,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (267)] Waiting until timeout for monitored process [2021-08-27 15:20:33,694 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-08-27 15:20:33,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 15:20:33,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-27 15:20:33,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:34,099 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-08-27 15:20:34,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763553302] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:20:34,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 15:20:34,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2021-08-27 15:20:34,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126050260] [2021-08-27 15:20:34,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:20:34,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-27 15:20:34,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2021-08-27 15:20:34,161 INFO L87 Difference]: Start difference. First operand 85 states and 97 transitions. cyclomatic complexity: 17 Second operand has 26 states, 26 states have (on average 2.923076923076923) internal successors, (76), 26 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:34,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:20:34,410 INFO L93 Difference]: Finished difference Result 95 states and 106 transitions. [2021-08-27 15:20:34,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 15:20:34,410 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 95 states and 106 transitions. [2021-08-27 15:20:34,411 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:20:34,411 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 95 states to 81 states and 91 transitions. [2021-08-27 15:20:34,411 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2021-08-27 15:20:34,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2021-08-27 15:20:34,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 81 states and 91 transitions. [2021-08-27 15:20:34,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:20:34,411 INFO L681 BuchiCegarLoop]: Abstraction has 81 states and 91 transitions. [2021-08-27 15:20:34,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states and 91 transitions. [2021-08-27 15:20:34,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2021-08-27 15:20:34,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.125) internal successors, (90), 79 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:34,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 90 transitions. [2021-08-27 15:20:34,413 INFO L704 BuchiCegarLoop]: Abstraction has 80 states and 90 transitions. [2021-08-27 15:20:34,413 INFO L587 BuchiCegarLoop]: Abstraction has 80 states and 90 transitions. [2021-08-27 15:20:34,413 INFO L425 BuchiCegarLoop]: ======== Iteration 30============ [2021-08-27 15:20:34,413 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 90 transitions. [2021-08-27 15:20:34,413 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:20:34,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:20:34,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:20:34,414 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:20:34,414 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:20:34,414 INFO L791 eck$LassoCheckResult]: Stem: 11981#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 11982#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 11993#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11995#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12002#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 12034#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12033#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 12032#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12031#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 12030#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12029#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 12028#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12027#L35-3 assume !(main_~i~0 < 5); 11987#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 11988#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 11996#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11999#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11979#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11980#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 12026#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 12024#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 12021#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 12018#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 12015#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 12012#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 12009#L39-3 assume !(main_~i~0 < 5); 12003#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 11997#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 11998#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11994#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11983#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11984#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 12023#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 12020#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 12017#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 12014#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 12011#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 12008#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 11985#L44-4 main_~nc_B~0 := 0; 11986#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12000#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 12001#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12025#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 12022#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12019#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 12016#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12013#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 12010#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12007#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 11977#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 11978#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11990#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 12046#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 12045#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 12044#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 12043#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 12042#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 12041#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 12039#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 12037#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 12036#L57-2 [2021-08-27 15:20:34,414 INFO L793 eck$LassoCheckResult]: Loop: 12036#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 12035#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 12036#L57-2 [2021-08-27 15:20:34,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:34,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1079016667, now seen corresponding path program 18 times [2021-08-27 15:20:34,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:20:34,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643395219] [2021-08-27 15:20:34,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:20:34,415 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:20:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:34,433 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:20:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:34,451 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:20:34,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:34,451 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 17 times [2021-08-27 15:20:34,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:20:34,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175720386] [2021-08-27 15:20:34,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:20:34,452 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:20:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:34,494 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:20:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:34,496 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:20:34,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:34,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1847901246, now seen corresponding path program 19 times [2021-08-27 15:20:34,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:20:34,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770006484] [2021-08-27 15:20:34,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:20:34,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:20:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:34,543 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:20:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:34,606 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:20:42,612 WARN L207 SmtUtils]: Spent 7.92 s on a formula simplification. DAG size of input: 486 DAG size of output: 348 [2021-08-27 15:20:44,515 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:20:44,515 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:20:44,515 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:20:44,515 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:20:44,515 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:20:44,516 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:44,516 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:20:44,516 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:20:44,516 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration30_Lasso [2021-08-27 15:20:44,516 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:20:44,516 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:20:44,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:44,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:44,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:44,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:44,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:44,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:44,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:44,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:44,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:44,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:44,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:44,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:46,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:46,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:46,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:46,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:46,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:46,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:46,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:46,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:47,040 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-08-27 15:20:50,102 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:20:50,102 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:20:50,102 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,104 INFO L229 MonitoredProcess]: Starting monitored process 268 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (268)] Waiting until timeout for monitored process [2021-08-27 15:20:50,116 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,123 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:50,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,124 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:50,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:50,144 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (268)] Ended with exit code 0 [2021-08-27 15:20:50,165 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,173 INFO L229 MonitoredProcess]: Starting monitored process 269 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (269)] Waiting until timeout for monitored process [2021-08-27 15:20:50,175 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:50,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:50,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:50,202 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,217 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (269)] Ended with exit code 0 [2021-08-27 15:20:50,218 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,218 INFO L229 MonitoredProcess]: Starting monitored process 270 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (270)] Waiting until timeout for monitored process [2021-08-27 15:20:50,220 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,226 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:50,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,226 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:50,226 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:50,227 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (270)] Ended with exit code 0 [2021-08-27 15:20:50,242 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,243 INFO L229 MonitoredProcess]: Starting monitored process 271 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (271)] Waiting until timeout for monitored process [2021-08-27 15:20:50,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,252 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:50,252 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:50,256 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (271)] Ended with exit code 0 [2021-08-27 15:20:50,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,273 INFO L229 MonitoredProcess]: Starting monitored process 272 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (272)] Waiting until timeout for monitored process [2021-08-27 15:20:50,275 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,283 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:50,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:50,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:50,284 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (272)] Ended with exit code 0 [2021-08-27 15:20:50,302 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,303 INFO L229 MonitoredProcess]: Starting monitored process 273 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (273)] Waiting until timeout for monitored process [2021-08-27 15:20:50,304 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,311 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:50,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,311 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:50,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:50,312 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (273)] Ended with exit code 0 [2021-08-27 15:20:50,328 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,328 INFO L229 MonitoredProcess]: Starting monitored process 274 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (274)] Waiting until timeout for monitored process [2021-08-27 15:20:50,330 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,337 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:50,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:50,339 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (274)] Ended with exit code 0 [2021-08-27 15:20:50,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,356 INFO L229 MonitoredProcess]: Starting monitored process 275 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (275)] Waiting until timeout for monitored process [2021-08-27 15:20:50,357 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 [2021-08-27 15:20:50,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,364 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:50,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,364 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:50,364 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:50,365 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (275)] Ended with exit code 0 [2021-08-27 15:20:50,380 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,380 INFO L229 MonitoredProcess]: Starting monitored process 276 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (276)] Waiting until timeout for monitored process [2021-08-27 15:20:50,382 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,389 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:50,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:50,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:50,390 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (276)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:50,405 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,406 INFO L229 MonitoredProcess]: Starting monitored process 277 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (277)] Waiting until timeout for monitored process [2021-08-27 15:20:50,411 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,417 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:50,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,417 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:50,417 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:50,418 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (277)] Ended with exit code 0 [2021-08-27 15:20:50,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,434 INFO L229 MonitoredProcess]: Starting monitored process 278 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (278)] Waiting until timeout for monitored process [2021-08-27 15:20:50,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:50,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,443 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:50,443 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:50,444 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (278)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:50,458 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,459 INFO L229 MonitoredProcess]: Starting monitored process 279 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (279)] Waiting until timeout for monitored process [2021-08-27 15:20:50,461 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,468 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:50,468 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:50,471 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (279)] Ended with exit code 0 [2021-08-27 15:20:50,486 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,487 INFO L229 MonitoredProcess]: Starting monitored process 280 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (280)] Waiting until timeout for monitored process [2021-08-27 15:20:50,488 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,496 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:50,496 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:50,508 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (280)] Ended with exit code 0 [2021-08-27 15:20:50,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,524 INFO L229 MonitoredProcess]: Starting monitored process 281 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (281)] Waiting until timeout for monitored process [2021-08-27 15:20:50,526 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:50,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,533 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:50,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:50,533 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (281)] Ended with exit code 0 [2021-08-27 15:20:50,549 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,550 INFO L229 MonitoredProcess]: Starting monitored process 282 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (282)] Waiting until timeout for monitored process [2021-08-27 15:20:50,552 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:50,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:50,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:50,559 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (282)] Ended with exit code 0 [2021-08-27 15:20:50,574 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,575 INFO L229 MonitoredProcess]: Starting monitored process 283 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (283)] Waiting until timeout for monitored process [2021-08-27 15:20:50,576 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 [2021-08-27 15:20:50,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,583 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:50,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,583 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:50,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:50,584 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (283)] Ended with exit code 0 [2021-08-27 15:20:50,599 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,601 INFO L229 MonitoredProcess]: Starting monitored process 284 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (284)] Waiting until timeout for monitored process [2021-08-27 15:20:50,603 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:50,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:50,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:50,612 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (284)] Ended with exit code 0 [2021-08-27 15:20:50,627 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,628 INFO L229 MonitoredProcess]: Starting monitored process 285 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (285)] Waiting until timeout for monitored process [2021-08-27 15:20:50,629 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,637 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:50,637 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:50,639 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,655 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (285)] Ended with exit code 0 [2021-08-27 15:20:50,655 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,655 INFO L229 MonitoredProcess]: Starting monitored process 286 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (286)] Waiting until timeout for monitored process [2021-08-27 15:20:50,657 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,665 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:50,665 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:50,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (286)] Ended with exit code 0 [2021-08-27 15:20:50,682 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,683 INFO L229 MonitoredProcess]: Starting monitored process 287 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (287)] Waiting until timeout for monitored process [2021-08-27 15:20:50,684 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,693 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:50,693 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:50,696 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (287)] Ended with exit code 0 [2021-08-27 15:20:50,711 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,712 INFO L229 MonitoredProcess]: Starting monitored process 288 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (288)] Waiting until timeout for monitored process [2021-08-27 15:20:50,713 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,722 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:50,722 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:50,727 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (288)] Ended with exit code 0 [2021-08-27 15:20:50,742 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,742 INFO L229 MonitoredProcess]: Starting monitored process 289 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (289)] Waiting until timeout for monitored process [2021-08-27 15:20:50,744 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:50,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,751 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:50,751 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:50,752 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (289)] Ended with exit code 0 [2021-08-27 15:20:50,767 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,768 INFO L229 MonitoredProcess]: Starting monitored process 290 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (290)] Waiting until timeout for monitored process [2021-08-27 15:20:50,770 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,777 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:50,777 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:50,779 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (290)] Ended with exit code 0 [2021-08-27 15:20:50,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,795 INFO L229 MonitoredProcess]: Starting monitored process 291 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (291)] Waiting until timeout for monitored process [2021-08-27 15:20:50,797 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:50,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,804 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:50,804 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:50,806 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (291)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:50,821 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,822 INFO L229 MonitoredProcess]: Starting monitored process 292 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (292)] Waiting until timeout for monitored process [2021-08-27 15:20:50,824 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:50,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:50,831 INFO L203 nArgumentSynthesizer]: 36 stem disjuncts [2021-08-27 15:20:50,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:50,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:50,899 INFO L401 nArgumentSynthesizer]: We have 76 Motzkin's Theorem applications. [2021-08-27 15:20:50,899 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:50,975 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:50,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (292)] Ended with exit code 0 [2021-08-27 15:20:50,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:50,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:50,993 INFO L229 MonitoredProcess]: Starting monitored process 293 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:50,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (293)] Waiting until timeout for monitored process [2021-08-27 15:20:50,995 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:51,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:51,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:51,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:51,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:51,009 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:51,009 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:51,020 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:20:51,061 INFO L443 ModelExtractionUtils]: Simplification made 30 calls to the SMT solver. [2021-08-27 15:20:51,061 INFO L444 ModelExtractionUtils]: 5 out of 31 variables were initially zero. Simplification set additionally 23 variables to zero. [2021-08-27 15:20:51,061 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:51,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:51,062 INFO L229 MonitoredProcess]: Starting monitored process 294 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:51,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (294)] Waiting until timeout for monitored process [2021-08-27 15:20:51,063 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:20:51,073 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 15:20:51,073 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:20:51,073 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_13, ULTIMATE.start_main_~j~0) = 3*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_13 - 2*ULTIMATE.start_main_~j~0 Supporting invariants [] [2021-08-27 15:20:51,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (293)] Ended with exit code 0 [2021-08-27 15:20:51,375 INFO L297 tatePredicateManager]: 70 out of 73 supporting invariants were superfluous and have been removed [2021-08-27 15:20:51,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:51,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:51,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 40 conjunts are in the unsatisfiable core [2021-08-27 15:20:51,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:52,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (294)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:52,420 WARN L261 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-27 15:20:52,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:52,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:20:52,467 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.13 stem predicates 2 loop predicates [2021-08-27 15:20:52,471 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 90 transitions. cyclomatic complexity: 15 Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:52,600 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 90 transitions. cyclomatic complexity: 15. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 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 82 states and 93 transitions. Complement of second has 12 states. [2021-08-27 15:20:52,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 10 stem states 0 non-accepting loop states 1 accepting loop states [2021-08-27 15:20:52,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:52,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 32 transitions. [2021-08-27 15:20:52,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 32 transitions. Stem has 60 letters. Loop has 2 letters. [2021-08-27 15:20:52,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:20:52,617 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 15:20:52,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:52,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 40 conjunts are in the unsatisfiable core [2021-08-27 15:20:52,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:53,618 WARN L261 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-27 15:20:53,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:53,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:20:53,663 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.13 stem predicates 2 loop predicates [2021-08-27 15:20:53,663 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 90 transitions. cyclomatic complexity: 15 Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:53,770 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 90 transitions. cyclomatic complexity: 15. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 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 82 states and 93 transitions. Complement of second has 12 states. [2021-08-27 15:20:53,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 10 stem states 0 non-accepting loop states 1 accepting loop states [2021-08-27 15:20:53,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:53,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 32 transitions. [2021-08-27 15:20:53,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 32 transitions. Stem has 60 letters. Loop has 2 letters. [2021-08-27 15:20:53,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:20:53,771 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 15:20:53,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:53,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 40 conjunts are in the unsatisfiable core [2021-08-27 15:20:53,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:54,783 WARN L261 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-27 15:20:54,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:54,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:20:54,829 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.13 stem predicates 2 loop predicates [2021-08-27 15:20:54,829 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 90 transitions. cyclomatic complexity: 15 Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:55,030 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 90 transitions. cyclomatic complexity: 15. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 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 104 states and 125 transitions. Complement of second has 21 states. [2021-08-27 15:20:55,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 16 states 13 stem states 1 non-accepting loop states 2 accepting loop states [2021-08-27 15:20:55,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:55,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 52 transitions. [2021-08-27 15:20:55,031 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 52 transitions. Stem has 60 letters. Loop has 2 letters. [2021-08-27 15:20:55,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:20:55,031 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 52 transitions. Stem has 62 letters. Loop has 2 letters. [2021-08-27 15:20:55,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:20:55,031 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 52 transitions. Stem has 60 letters. Loop has 4 letters. [2021-08-27 15:20:55,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:20:55,031 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 125 transitions. [2021-08-27 15:20:55,032 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:20:55,032 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 98 states and 115 transitions. [2021-08-27 15:20:55,032 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2021-08-27 15:20:55,032 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2021-08-27 15:20:55,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 98 states and 115 transitions. [2021-08-27 15:20:55,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:20:55,033 INFO L681 BuchiCegarLoop]: Abstraction has 98 states and 115 transitions. [2021-08-27 15:20:55,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states and 115 transitions. [2021-08-27 15:20:55,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 84. [2021-08-27 15:20:55,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 84 states have (on average 1.1428571428571428) internal successors, (96), 83 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:55,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 96 transitions. [2021-08-27 15:20:55,034 INFO L704 BuchiCegarLoop]: Abstraction has 84 states and 96 transitions. [2021-08-27 15:20:55,034 INFO L587 BuchiCegarLoop]: Abstraction has 84 states and 96 transitions. [2021-08-27 15:20:55,034 INFO L425 BuchiCegarLoop]: ======== Iteration 31============ [2021-08-27 15:20:55,034 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states and 96 transitions. [2021-08-27 15:20:55,035 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:20:55,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:20:55,035 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:20:55,035 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:20:55,035 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:20:55,035 INFO L791 eck$LassoCheckResult]: Stem: 13319#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 13320#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 13331#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13333#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13340#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13372#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13371#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13370#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13369#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13368#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13367#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13366#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13365#L35-3 assume !(main_~i~0 < 5); 13325#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 13326#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 13334#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13337#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13315#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13316#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13364#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13362#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13359#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13356#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13353#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13350#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13347#L39-3 assume !(main_~i~0 < 5); 13341#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 13335#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 13336#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 13332#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 13321#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 13322#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 13361#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 13358#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 13355#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 13352#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 13349#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 13346#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 13323#L44-4 main_~nc_B~0 := 0; 13324#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13338#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 13339#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13363#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 13360#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13357#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 13354#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13351#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 13348#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13345#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 13317#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 13318#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13328#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 13386#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13385#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 13384#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13383#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 13382#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13381#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 13380#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13379#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 13377#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13375#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 13374#L57-2 [2021-08-27 15:20:55,035 INFO L793 eck$LassoCheckResult]: Loop: 13374#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13373#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 13374#L57-2 [2021-08-27 15:20:55,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:55,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1846056126, now seen corresponding path program 20 times [2021-08-27 15:20:55,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:20:55,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809012817] [2021-08-27 15:20:55,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:20:55,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:20:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:55,151 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-08-27 15:20:55,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:20:55,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809012817] [2021-08-27 15:20:55,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809012817] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:20:55,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476023664] [2021-08-27 15:20:55,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 15:20:55,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 15:20:55,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:55,165 INFO L229 MonitoredProcess]: Starting monitored process 295 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 15:20:55,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (295)] Waiting until timeout for monitored process [2021-08-27 15:20:56,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 15:20:56,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 15:20:56,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 15:20:56,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:57,059 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-08-27 15:20:57,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476023664] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:20:57,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 15:20:57,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 18 [2021-08-27 15:20:57,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119192390] [2021-08-27 15:20:57,060 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:20:57,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:57,060 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 18 times [2021-08-27 15:20:57,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:20:57,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406189710] [2021-08-27 15:20:57,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:20:57,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:20:57,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:57,067 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:20:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:20:57,069 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:20:57,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:20:57,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-27 15:20:57,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2021-08-27 15:20:57,135 INFO L87 Difference]: Start difference. First operand 84 states and 96 transitions. cyclomatic complexity: 17 Second operand has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:57,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:20:57,233 INFO L93 Difference]: Finished difference Result 95 states and 104 transitions. [2021-08-27 15:20:57,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 15:20:57,234 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 95 states and 104 transitions. [2021-08-27 15:20:57,234 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:20:57,234 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 95 states to 0 states and 0 transitions. [2021-08-27 15:20:57,234 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 15:20:57,234 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 15:20:57,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 15:20:57,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:20:57,234 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:20:57,234 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:20:57,234 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:20:57,234 INFO L425 BuchiCegarLoop]: ======== Iteration 32============ [2021-08-27 15:20:57,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 15:20:57,234 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:20:57,235 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 15:20:57,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:20:57 BoogieIcfgContainer [2021-08-27 15:20:57,239 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:20:57,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:20:57,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:20:57,239 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:20:57,239 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:18:22" (3/4) ... [2021-08-27 15:20:57,241 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 15:20:57,241 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:20:57,242 INFO L168 Benchmark]: Toolchain (without parser) took 155565.90 ms. Allocated memory was 60.8 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 45.5 MB in the beginning and 356.8 MB in the end (delta: -311.3 MB). Peak memory consumption was 819.7 MB. Max. memory is 16.1 GB. [2021-08-27 15:20:57,242 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 46.1 MB. Free memory was 28.3 MB in the beginning and 28.3 MB in the end (delta: 53.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:20:57,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.32 ms. Allocated memory is still 60.8 MB. Free memory was 45.4 MB in the beginning and 44.6 MB in the end (delta: 739.0 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 15:20:57,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.05 ms. Allocated memory is still 60.8 MB. Free memory was 44.4 MB in the beginning and 42.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:20:57,242 INFO L168 Benchmark]: Boogie Preprocessor took 30.20 ms. Allocated memory is still 60.8 MB. Free memory was 42.8 MB in the beginning and 41.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:20:57,243 INFO L168 Benchmark]: RCFGBuilder took 362.02 ms. Allocated memory is still 60.8 MB. Free memory was 41.4 MB in the beginning and 39.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:20:57,243 INFO L168 Benchmark]: BuchiAutomizer took 154901.17 ms. Allocated memory was 60.8 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 38.8 MB in the beginning and 357.9 MB in the end (delta: -319.0 MB). Peak memory consumption was 813.4 MB. Max. memory is 16.1 GB. [2021-08-27 15:20:57,243 INFO L168 Benchmark]: Witness Printer took 2.20 ms. Allocated memory is still 1.2 GB. Free memory was 357.9 MB in the beginning and 356.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:20:57,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 46.1 MB. Free memory was 28.3 MB in the beginning and 28.3 MB in the end (delta: 53.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 227.32 ms. Allocated memory is still 60.8 MB. Free memory was 45.4 MB in the beginning and 44.6 MB in the end (delta: 739.0 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.05 ms. Allocated memory is still 60.8 MB. Free memory was 44.4 MB in the beginning and 42.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.20 ms. Allocated memory is still 60.8 MB. Free memory was 42.8 MB in the beginning and 41.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 362.02 ms. Allocated memory is still 60.8 MB. Free memory was 41.4 MB in the beginning and 39.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 154901.17 ms. Allocated memory was 60.8 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 38.8 MB in the beginning and 357.9 MB in the end (delta: -319.0 MB). Peak memory consumption was 813.4 MB. Max. memory is 16.1 GB. * Witness Printer took 2.20 ms. Allocated memory is still 1.2 GB. Free memory was 357.9 MB in the beginning and 356.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 31 terminating modules (18 trivial, 9 deterministic, 4 nondeterministic). One deterministic module has affine ranking function 9 * unknown-#length-unknown[string_A] + -2 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * nc_A + unknown-#length-unknown[string_A] + -1 * string_A and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[string_B] + -1 * nc_B and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[string_A] + -2 * j and consists of 8 locations. One deterministic module has affine ranking function nc_A + -1 * i and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[string_B] + -1 * i and consists of 8 locations. One deterministic module has affine ranking function nc_A + -1 * i and consists of 4 locations. One deterministic module has affine ranking function j + nc_A + -1 * i and consists of 4 locations. One deterministic module has affine ranking function -5 * i + 4 * unknown-#length-unknown[string_A] and consists of 24 locations. One nondeterministic module has affine ranking function -2 * i + 5 * unknown-#length-unknown[string_A] and consists of 10 locations. One nondeterministic module has affine ranking function -6 * i + 7 * unknown-#length-unknown[string_A] and consists of 14 locations. One nondeterministic module has affine ranking function 3 * unknown-#length-unknown[string_B] + -2 * j and consists of 14 locations. One nondeterministic module has affine ranking function 3 * unknown-#length-unknown[string_B] + -2 * j and consists of 16 locations. 18 modules have a trivial ranking function, the largest among these consists of 26 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 154.8s and 32 iterations. TraceHistogramMax:6. Analysis of lassos took 135.0s. Construction of modules took 2.1s. Büchi inclusion checks took 17.4s. Highest rank in rank-based complementation 3. Minimization of det autom 8. Minimization of nondet autom 23. Automata minimization 54.6ms AutomataMinimizationTime, 30 MinimizatonAttempts, 224 StatesRemovedByMinimization, 25 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 96 states and ocurred in iteration 24. Nontrivial modules had stage [9, 0, 4, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 578 SDtfs, 1175 SDslu, 1618 SDs, 0 SdLazy, 4369 SolverSat, 592 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2133.5ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc6 concLT0 SILN0 SILU12 SILI0 SILT0 lasso13 LassoPreprocessingBenchmarks: Lassos: inital416 mio100 ax100 hnf99 lsp96 ukn45 mio100 lsp49 div100 bol100 ite100 ukn100 eq176 hnf92 smp96 dnf1104 smp77 tf100 neg95 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 250ms VariablesStem: 9 VariablesLoop: 3 DisjunctsStem: 72 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 148 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 15:20:57,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (295)] Ended with exit code 0 [2021-08-27 15:20:57,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (267)] Ended with exit code 0 [2021-08-27 15:20:57,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (266)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:57,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (231)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:58,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (230)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:58,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (207)] Ended with exit code 0 [2021-08-27 15:20:58,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:58,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:58,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:59,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2021-08-27 15:20:59,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2021-08-27 15:20:59,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2021-08-27 15:20:59,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:59,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-08-27 15:21:00,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-08-27 15:21:00,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-08-27 15:21:00,484 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...