./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 03931b69e9073178e54f20b91a2b2a66154a89c69758aa4d312927278c5c0104 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 17:51:10,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 17:51:10,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 17:51:10,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 17:51:10,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 17:51:10,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 17:51:10,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 17:51:10,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 17:51:10,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 17:51:10,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 17:51:10,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 17:51:10,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 17:51:10,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 17:51:10,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 17:51:10,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 17:51:10,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 17:51:10,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 17:51:10,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 17:51:10,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 17:51:10,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 17:51:10,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 17:51:10,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 17:51:10,342 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 17:51:10,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 17:51:10,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 17:51:10,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 17:51:10,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 17:51:10,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 17:51:10,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 17:51:10,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 17:51:10,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 17:51:10,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 17:51:10,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 17:51:10,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 17:51:10,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 17:51:10,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 17:51:10,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 17:51:10,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 17:51:10,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 17:51:10,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 17:51:10,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 17:51:10,357 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-19 17:51:10,384 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 17:51:10,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 17:51:10,385 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 17:51:10,385 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 17:51:10,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 17:51:10,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 17:51:10,386 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 17:51:10,386 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 17:51:10,386 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 17:51:10,387 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 17:51:10,387 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 17:51:10,387 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 17:51:10,387 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 17:51:10,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 17:51:10,387 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 17:51:10,387 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 17:51:10,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 17:51:10,388 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 17:51:10,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 17:51:10,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 17:51:10,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 17:51:10,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 17:51:10,388 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 17:51:10,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 17:51:10,389 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 17:51:10,389 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 17:51:10,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 17:51:10,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 17:51:10,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 17:51:10,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 17:51:10,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 17:51:10,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 17:51:10,391 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 17:51:10,391 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03931b69e9073178e54f20b91a2b2a66154a89c69758aa4d312927278c5c0104 [2021-12-19 17:51:10,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 17:51:10,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 17:51:10,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 17:51:10,610 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 17:51:10,610 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 17:51:10,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i [2021-12-19 17:51:10,651 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45254aef0/5b5d921f315b4b40a3ed308cc83c90c5/FLAG4d94c810d [2021-12-19 17:51:11,009 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 17:51:11,010 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/array_shadowinit.i [2021-12-19 17:51:11,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45254aef0/5b5d921f315b4b40a3ed308cc83c90c5/FLAG4d94c810d [2021-12-19 17:51:11,447 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45254aef0/5b5d921f315b4b40a3ed308cc83c90c5 [2021-12-19 17:51:11,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 17:51:11,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 17:51:11,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 17:51:11,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 17:51:11,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 17:51:11,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:51:11" (1/1) ... [2021-12-19 17:51:11,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eb237c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:51:11, skipping insertion in model container [2021-12-19 17:51:11,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:51:11" (1/1) ... [2021-12-19 17:51:11,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 17:51:11,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 17:51:11,608 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/array_shadowinit.i[809,822] [2021-12-19 17:51:11,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 17:51:11,624 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 17:51:11,632 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/array_shadowinit.i[809,822] [2021-12-19 17:51:11,639 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 17:51:11,650 INFO L208 MainTranslator]: Completed translation [2021-12-19 17:51:11,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:51:11 WrapperNode [2021-12-19 17:51:11,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 17:51:11,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 17:51:11,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 17:51:11,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 17:51:11,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:51:11" (1/1) ... [2021-12-19 17:51:11,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:51:11" (1/1) ... [2021-12-19 17:51:11,673 INFO L137 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43 [2021-12-19 17:51:11,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 17:51:11,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 17:51:11,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 17:51:11,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 17:51:11,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:51:11" (1/1) ... [2021-12-19 17:51:11,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:51:11" (1/1) ... [2021-12-19 17:51:11,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:51:11" (1/1) ... [2021-12-19 17:51:11,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:51:11" (1/1) ... [2021-12-19 17:51:11,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:51:11" (1/1) ... [2021-12-19 17:51:11,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:51:11" (1/1) ... [2021-12-19 17:51:11,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:51:11" (1/1) ... [2021-12-19 17:51:11,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 17:51:11,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 17:51:11,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 17:51:11,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 17:51:11,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:51:11" (1/1) ... [2021-12-19 17:51:11,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:11,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:11,737 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:11,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-19 17:51:11,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 17:51:11,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 17:51:11,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-19 17:51:11,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-19 17:51:11,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 17:51:11,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 17:51:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-19 17:51:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-19 17:51:11,816 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 17:51:11,818 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 17:51:11,916 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 17:51:11,921 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 17:51:11,922 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-19 17:51:11,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:51:11 BoogieIcfgContainer [2021-12-19 17:51:11,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 17:51:11,924 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 17:51:11,924 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 17:51:11,926 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 17:51:11,927 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:51:11,927 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 05:51:11" (1/3) ... [2021-12-19 17:51:11,928 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6986b17c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 05:51:11, skipping insertion in model container [2021-12-19 17:51:11,929 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:51:11,929 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:51:11" (2/3) ... [2021-12-19 17:51:11,929 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6986b17c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 05:51:11, skipping insertion in model container [2021-12-19 17:51:11,929 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:51:11,929 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:51:11" (3/3) ... [2021-12-19 17:51:11,930 INFO L388 chiAutomizerObserver]: Analyzing ICFG array_shadowinit.i [2021-12-19 17:51:11,968 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 17:51:11,968 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 17:51:11,968 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 17:51:11,968 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 17:51:11,969 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 17:51:11,969 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 17:51:11,969 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 17:51:11,969 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 17:51:11,979 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:51:11,993 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-19 17:51:11,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:51:11,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:51:11,997 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-19 17:51:11,997 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-19 17:51:11,997 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 17:51:11,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:51:12,000 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-19 17:51:12,000 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:51:12,000 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:51:12,000 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-19 17:51:12,000 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-19 17:51:12,005 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(19, 2);~N~0 := 0; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~mem2#1, main_~i~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;~N~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 7#L18true assume ~N~0 > 0;havoc main_~i~0#1;havoc main_~k~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0#1 := 0;main_~k~0#1 := 0; 12#L23-2true [2021-12-19 17:51:12,006 INFO L793 eck$LassoCheckResult]: Loop: 12#L23-2true assume !!(main_~i~0#1 < ~N~0);call write~int(main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_~i~0#1 := 1 + main_~i~0#1;main_~k~0#1 := 1 + main_~k~0#1; 12#L23-2true [2021-12-19 17:51:12,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:51:12,010 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-12-19 17:51:12,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:51:12,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069722818] [2021-12-19 17:51:12,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:51:12,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:51:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:12,097 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:51:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:12,129 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:51:12,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:51:12,130 INFO L85 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 1 times [2021-12-19 17:51:12,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:51:12,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5628959] [2021-12-19 17:51:12,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:51:12,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:51:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:12,159 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:51:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:12,164 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:51:12,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:51:12,165 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2021-12-19 17:51:12,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:51:12,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255409254] [2021-12-19 17:51:12,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:51:12,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:51:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:12,200 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:51:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:12,213 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:51:12,509 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:51:12,509 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:51:12,509 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:51:12,510 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:51:12,510 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 17:51:12,510 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:12,510 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:51:12,511 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:51:12,511 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_shadowinit.i_Iteration1_Lasso [2021-12-19 17:51:12,511 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:51:12,511 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:51:12,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:12,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:12,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:12,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:12,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:12,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:12,852 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:51:12,855 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 17:51:12,856 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:12,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:12,857 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:12,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-19 17:51:12,860 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:51:12,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:51:12,866 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:51:12,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:51:12,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:51:12,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:51:12,868 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:51:12,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:51:12,880 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:51:12,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-19 17:51:12,896 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:12,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:12,897 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:12,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-19 17:51:12,900 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 [2021-12-19 17:51:12,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:51:12,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:51:12,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:51:12,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:51:12,907 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:51:12,908 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:51:12,923 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:51:12,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-19 17:51:12,939 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:12,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:12,940 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:12,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-19 17:51:12,942 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:51:12,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:51:12,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:51:12,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:51:12,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:51:12,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:51:12,949 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:51:12,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:51:12,964 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:51:12,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-19 17:51:12,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:12,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:12,980 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:12,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-19 17:51:12,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:51:12,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:51:12,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:51:12,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:51:12,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:51:12,994 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:51:12,994 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:51:13,007 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 17:51:13,031 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-12-19 17:51:13,031 INFO L444 ModelExtractionUtils]: 6 out of 19 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-12-19 17:51:13,033 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:13,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:13,040 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:13,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-19 17:51:13,079 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 17:51:13,088 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-19 17:51:13,088 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 17:51:13,089 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1) = -2*ULTIMATE.start_main_~i~0#1 + 1*v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1 Supporting invariants [1*ULTIMATE.start_main_~#a~0#1.offset - 2*ULTIMATE.start_main_~i~0#1 + 4*ULTIMATE.start_main_~k~0#1 >= 0] [2021-12-19 17:51:13,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-19 17:51:13,115 INFO L297 tatePredicateManager]: 5 out of 6 supporting invariants were superfluous and have been removed [2021-12-19 17:51:13,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:51:13,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:51:13,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 17:51:13,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:51:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:51:13,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-19 17:51:13,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:51:13,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:51:13,215 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-19 17:51:13,216 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:51:13,256 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 39 transitions. Complement of second has 6 states. [2021-12-19 17:51:13,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-19 17:51:13,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:51:13,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2021-12-19 17:51:13,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 1 letters. [2021-12-19 17:51:13,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:51:13,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 1 letters. [2021-12-19 17:51:13,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:51:13,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 2 letters. [2021-12-19 17:51:13,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:51:13,265 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2021-12-19 17:51:13,269 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-19 17:51:13,270 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 10 states and 13 transitions. [2021-12-19 17:51:13,271 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-19 17:51:13,271 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-19 17:51:13,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-12-19 17:51:13,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 17:51:13,272 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-12-19 17:51:13,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-12-19 17:51:13,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-12-19 17:51:13,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:51:13,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-12-19 17:51:13,288 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-12-19 17:51:13,288 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-12-19 17:51:13,289 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 17:51:13,289 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-12-19 17:51:13,290 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-19 17:51:13,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:51:13,290 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:51:13,291 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-19 17:51:13,291 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 17:51:13,291 INFO L791 eck$LassoCheckResult]: Stem: 113#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(19, 2);~N~0 := 0; 114#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~mem2#1, main_~i~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;~N~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 111#L18 assume ~N~0 > 0;havoc main_~i~0#1;havoc main_~k~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0#1 := 0;main_~k~0#1 := 0; 112#L23-2 assume !(main_~i~0#1 < ~N~0); 116#L23-3 main_~i~0#1 := 0; 118#L29-2 [2021-12-19 17:51:13,291 INFO L793 eck$LassoCheckResult]: Loop: 118#L29-2 assume !!(main_~i~0#1 < ~N~0);call main_#t~mem2#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_#t~mem2#1 == main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 115#L13 assume !(0 == __VERIFIER_assert_~cond#1); 110#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1;main_~i~0#1 := 1 + main_~i~0#1; 118#L29-2 [2021-12-19 17:51:13,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:51:13,292 INFO L85 PathProgramCache]: Analyzing trace with hash 28693928, now seen corresponding path program 1 times [2021-12-19 17:51:13,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:51:13,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910034702] [2021-12-19 17:51:13,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:51:13,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:51:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:51:13,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:51:13,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 17:51:13,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910034702] [2021-12-19 17:51:13,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910034702] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 17:51:13,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 17:51:13,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 17:51:13,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643578393] [2021-12-19 17:51:13,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 17:51:13,365 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-19 17:51:13,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:51:13,365 INFO L85 PathProgramCache]: Analyzing trace with hash 56828, now seen corresponding path program 1 times [2021-12-19 17:51:13,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:51:13,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731590207] [2021-12-19 17:51:13,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:51:13,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:51:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:13,376 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:51:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:13,383 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:51:13,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 17:51:13,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 17:51:13,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 17:51:13,435 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 5 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) [2021-12-19 17:51:13,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 17:51:13,445 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2021-12-19 17:51:13,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 17:51:13,446 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2021-12-19 17:51:13,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-19 17:51:13,447 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 10 transitions. [2021-12-19 17:51:13,447 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-19 17:51:13,447 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-19 17:51:13,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2021-12-19 17:51:13,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 17:51:13,448 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-19 17:51:13,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2021-12-19 17:51:13,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-12-19 17:51:13,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:51:13,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-12-19 17:51:13,449 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-19 17:51:13,449 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-19 17:51:13,449 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-19 17:51:13,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2021-12-19 17:51:13,450 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-19 17:51:13,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:51:13,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:51:13,450 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-19 17:51:13,451 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 17:51:13,451 INFO L791 eck$LassoCheckResult]: Stem: 139#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(19, 2);~N~0 := 0; 140#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~mem2#1, main_~i~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;~N~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 135#L18 assume ~N~0 > 0;havoc main_~i~0#1;havoc main_~k~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0#1 := 0;main_~k~0#1 := 0; 136#L23-2 assume !!(main_~i~0#1 < ~N~0);call write~int(main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_~i~0#1 := 1 + main_~i~0#1;main_~k~0#1 := 1 + main_~k~0#1; 141#L23-2 assume !(main_~i~0#1 < ~N~0); 142#L23-3 main_~i~0#1 := 0; 143#L29-2 [2021-12-19 17:51:13,451 INFO L793 eck$LassoCheckResult]: Loop: 143#L29-2 assume !!(main_~i~0#1 < ~N~0);call main_#t~mem2#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_#t~mem2#1 == main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 137#L13 assume !(0 == __VERIFIER_assert_~cond#1); 138#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1;main_~i~0#1 := 1 + main_~i~0#1; 143#L29-2 [2021-12-19 17:51:13,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:51:13,467 INFO L85 PathProgramCache]: Analyzing trace with hash 889513522, now seen corresponding path program 1 times [2021-12-19 17:51:13,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:51:13,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373051725] [2021-12-19 17:51:13,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:51:13,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:51:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:13,477 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:51:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:13,484 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:51:13,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:51:13,486 INFO L85 PathProgramCache]: Analyzing trace with hash 56828, now seen corresponding path program 2 times [2021-12-19 17:51:13,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:51:13,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480198728] [2021-12-19 17:51:13,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:51:13,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:51:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:13,492 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:51:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:13,496 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:51:13,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:51:13,496 INFO L85 PathProgramCache]: Analyzing trace with hash -450855381, now seen corresponding path program 1 times [2021-12-19 17:51:13,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:51:13,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285959592] [2021-12-19 17:51:13,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:51:13,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:51:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:13,511 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:51:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:13,522 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:51:13,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-19 17:51:13,825 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:51:13,825 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:51:13,825 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:51:13,825 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:51:13,825 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 17:51:13,825 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:13,825 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:51:13,825 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:51:13,825 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_shadowinit.i_Iteration3_Lasso [2021-12-19 17:51:13,825 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:51:13,825 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:51:13,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:13,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:13,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:13,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:13,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:13,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:13,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:14,146 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:51:14,146 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 17:51:14,146 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:14,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:14,164 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:14,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-19 17:51:14,166 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:51:14,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:51:14,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:51:14,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:51:14,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:51:14,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:51:14,173 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:51:14,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:51:14,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:51:14,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-19 17:51:14,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:14,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:14,214 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:14,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-19 17:51:14,217 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 [2021-12-19 17:51:14,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:51:14,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:51:14,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:51:14,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:51:14,232 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:51:14,232 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:51:14,243 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 17:51:14,260 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2021-12-19 17:51:14,260 INFO L444 ModelExtractionUtils]: 9 out of 25 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-12-19 17:51:14,260 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:14,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:14,261 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:14,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-19 17:51:14,279 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 17:51:14,308 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-19 17:51:14,308 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 17:51:14,309 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~k~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 3*ULTIMATE.start_main_~k~0#1 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_2 + 4*ULTIMATE.start_main_~k~0#1 >= 0] [2021-12-19 17:51:14,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-19 17:51:14,336 INFO L297 tatePredicateManager]: 6 out of 8 supporting invariants were superfluous and have been removed [2021-12-19 17:51:14,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:51:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:51:14,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-19 17:51:14,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:51:14,411 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-19 17:51:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:51:14,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-19 17:51:14,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:51:14,528 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 [2021-12-19 17:51:14,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:51:14,541 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2021-12-19 17:51:14,542 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:51:14,602 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 22 transitions. Complement of second has 9 states. [2021-12-19 17:51:14,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2021-12-19 17:51:14,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:51:14,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 13 transitions. [2021-12-19 17:51:14,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 6 letters. Loop has 3 letters. [2021-12-19 17:51:14,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:51:14,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 9 letters. Loop has 3 letters. [2021-12-19 17:51:14,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:51:14,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 6 letters. Loop has 6 letters. [2021-12-19 17:51:14,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:51:14,604 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 22 transitions. [2021-12-19 17:51:14,605 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-19 17:51:14,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 12 states and 13 transitions. [2021-12-19 17:51:14,605 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-12-19 17:51:14,605 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-19 17:51:14,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2021-12-19 17:51:14,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 17:51:14,606 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-12-19 17:51:14,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2021-12-19 17:51:14,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2021-12-19 17:51:14,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.1) internal successors, (11), 9 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) [2021-12-19 17:51:14,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-12-19 17:51:14,607 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-12-19 17:51:14,607 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-12-19 17:51:14,607 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-19 17:51:14,607 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 11 transitions. [2021-12-19 17:51:14,608 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-19 17:51:14,608 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:51:14,608 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:51:14,608 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-12-19 17:51:14,608 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 17:51:14,608 INFO L791 eck$LassoCheckResult]: Stem: 267#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(19, 2);~N~0 := 0; 268#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~mem2#1, main_~i~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;~N~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 263#L18 assume ~N~0 > 0;havoc main_~i~0#1;havoc main_~k~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0#1 := 0;main_~k~0#1 := 0; 264#L23-2 assume !!(main_~i~0#1 < ~N~0);call write~int(main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_~i~0#1 := 1 + main_~i~0#1;main_~k~0#1 := 1 + main_~k~0#1; 269#L23-2 assume !!(main_~i~0#1 < ~N~0);call write~int(main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_~i~0#1 := 1 + main_~i~0#1;main_~k~0#1 := 1 + main_~k~0#1; 270#L23-2 assume !(main_~i~0#1 < ~N~0); 272#L23-3 main_~i~0#1 := 0; 271#L29-2 [2021-12-19 17:51:14,608 INFO L793 eck$LassoCheckResult]: Loop: 271#L29-2 assume !!(main_~i~0#1 < ~N~0);call main_#t~mem2#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_#t~mem2#1 == main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 265#L13 assume !(0 == __VERIFIER_assert_~cond#1); 266#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1;main_~i~0#1 := 1 + main_~i~0#1; 271#L29-2 [2021-12-19 17:51:14,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:51:14,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1805117160, now seen corresponding path program 2 times [2021-12-19 17:51:14,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:51:14,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216618420] [2021-12-19 17:51:14,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:51:14,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:51:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:14,623 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:51:14,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:14,636 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:51:14,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:51:14,636 INFO L85 PathProgramCache]: Analyzing trace with hash 56828, now seen corresponding path program 3 times [2021-12-19 17:51:14,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:51:14,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113705720] [2021-12-19 17:51:14,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:51:14,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:51:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:14,639 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:51:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:14,643 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:51:14,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:51:14,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1040172619, now seen corresponding path program 2 times [2021-12-19 17:51:14,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:51:14,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148259853] [2021-12-19 17:51:14,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:51:14,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:51:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:14,652 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:51:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:51:14,661 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:51:14,909 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:51:14,909 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:51:14,909 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:51:14,909 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:51:14,909 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 17:51:14,909 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:14,909 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:51:14,909 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:51:14,910 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_shadowinit.i_Iteration4_Lasso [2021-12-19 17:51:14,910 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:51:14,910 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:51:14,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:14,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:14,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:14,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:14,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:14,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:15,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:51:15,194 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:51:15,195 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 17:51:15,195 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:15,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:15,196 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:15,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-19 17:51:15,198 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:51:15,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:51:15,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:51:15,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:51:15,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:51:15,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:51:15,204 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:51:15,204 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:51:15,205 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:51:15,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-19 17:51:15,220 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:15,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:15,222 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:15,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-19 17:51:15,223 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:51:15,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:51:15,228 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:51:15,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:51:15,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:51:15,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:51:15,229 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:51:15,229 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:51:15,245 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:51:15,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-19 17:51:15,260 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:15,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:15,261 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:15,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-19 17:51:15,264 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:51:15,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:51:15,269 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:51:15,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:51:15,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:51:15,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:51:15,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:51:15,270 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:51:15,273 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:51:15,288 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 [2021-12-19 17:51:15,288 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:15,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:15,289 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:15,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-19 17:51:15,291 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:51:15,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:51:15,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:51:15,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:51:15,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:51:15,297 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:51:15,297 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:51:15,299 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:51:15,313 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 [2021-12-19 17:51:15,314 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:15,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:15,314 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:15,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-19 17:51:15,318 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:51:15,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:51:15,323 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:51:15,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:51:15,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:51:15,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:51:15,324 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:51:15,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:51:15,339 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:51:15,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-19 17:51:15,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:15,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:15,358 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:15,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-19 17:51:15,360 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:51:15,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:51:15,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:51:15,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:51:15,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:51:15,367 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:51:15,367 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:51:15,379 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:51:15,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-19 17:51:15,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:15,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:15,396 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:15,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-19 17:51:15,399 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:51:15,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:51:15,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:51:15,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:51:15,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:51:15,406 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:51:15,406 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:51:15,418 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:51:15,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-19 17:51:15,432 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:15,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:15,433 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:15,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-19 17:51:15,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:51:15,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:51:15,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:51:15,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:51:15,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:51:15,445 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:51:15,445 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:51:15,447 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:51:15,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-12-19 17:51:15,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:15,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:15,464 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:15,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-19 17:51:15,466 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 [2021-12-19 17:51:15,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:51:15,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:51:15,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:51:15,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:51:15,474 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:51:15,474 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:51:15,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:51:15,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-12-19 17:51:15,502 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:15,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:15,502 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:15,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-19 17:51:15,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:51:15,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:51:15,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:51:15,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:51:15,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:51:15,511 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:51:15,511 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:51:15,519 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:51:15,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-19 17:51:15,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:15,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:15,535 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:15,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-19 17:51:15,545 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:51:15,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:51:15,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:51:15,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:51:15,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:51:15,552 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:51:15,552 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:51:15,568 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:51:15,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-12-19 17:51:15,584 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:15,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:15,585 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:15,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-19 17:51:15,588 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:51:15,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:51:15,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:51:15,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:51:15,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:51:15,598 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:51:15,598 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:51:15,610 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 17:51:15,640 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-12-19 17:51:15,640 INFO L444 ModelExtractionUtils]: 8 out of 19 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-12-19 17:51:15,640 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:51:15,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:51:15,641 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:51:15,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-19 17:51:15,644 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 17:51:15,653 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-19 17:51:15,653 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 17:51:15,653 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_3) = -4*ULTIMATE.start_main_~i~0#1 + 1*v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_3 Supporting invariants [] [2021-12-19 17:51:15,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-19 17:51:15,702 INFO L297 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2021-12-19 17:51:15,705 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 [2021-12-19 17:51:15,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:51:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:51:15,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 17:51:15,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:51:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:51:15,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-19 17:51:15,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:51:15,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:51:15,790 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-12-19 17:51:15,790 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:51:15,806 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 15 transitions. Complement of second has 5 states. [2021-12-19 17:51:15,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-19 17:51:15,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:51:15,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2021-12-19 17:51:15,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 3 letters. [2021-12-19 17:51:15,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:51:15,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 10 letters. Loop has 3 letters. [2021-12-19 17:51:15,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:51:15,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 6 letters. [2021-12-19 17:51:15,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:51:15,809 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2021-12-19 17:51:15,809 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 17:51:15,809 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2021-12-19 17:51:15,810 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-19 17:51:15,810 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-19 17:51:15,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-19 17:51:15,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 17:51:15,810 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 17:51:15,810 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 17:51:15,810 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 17:51:15,810 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-19 17:51:15,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-19 17:51:15,811 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 17:51:15,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-19 17:51:15,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 05:51:15 BoogieIcfgContainer [2021-12-19 17:51:15,815 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 17:51:15,816 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 17:51:15,816 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 17:51:15,816 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 17:51:15,816 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:51:11" (3/4) ... [2021-12-19 17:51:15,818 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-19 17:51:15,818 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 17:51:15,819 INFO L158 Benchmark]: Toolchain (without parser) took 4362.03ms. Allocated memory was 104.9MB in the beginning and 199.2MB in the end (delta: 94.4MB). Free memory was 79.1MB in the beginning and 159.7MB in the end (delta: -80.6MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2021-12-19 17:51:15,819 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 63.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 17:51:15,819 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.61ms. Allocated memory was 104.9MB in the beginning and 165.7MB in the end (delta: 60.8MB). Free memory was 78.9MB in the beginning and 142.0MB in the end (delta: -63.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 17:51:15,820 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.59ms. Allocated memory is still 165.7MB. Free memory was 142.0MB in the beginning and 140.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 17:51:15,820 INFO L158 Benchmark]: Boogie Preprocessor took 41.44ms. Allocated memory is still 165.7MB. Free memory was 140.5MB in the beginning and 139.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 17:51:15,820 INFO L158 Benchmark]: RCFGBuilder took 207.02ms. Allocated memory is still 165.7MB. Free memory was 139.4MB in the beginning and 130.2MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-19 17:51:15,820 INFO L158 Benchmark]: BuchiAutomizer took 3891.37ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 130.2MB in the beginning and 159.7MB in the end (delta: -29.5MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2021-12-19 17:51:15,821 INFO L158 Benchmark]: Witness Printer took 2.42ms. Allocated memory is still 199.2MB. Free memory is still 159.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 17:51:15,822 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 63.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 190.61ms. Allocated memory was 104.9MB in the beginning and 165.7MB in the end (delta: 60.8MB). Free memory was 78.9MB in the beginning and 142.0MB in the end (delta: -63.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.59ms. Allocated memory is still 165.7MB. Free memory was 142.0MB in the beginning and 140.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.44ms. Allocated memory is still 165.7MB. Free memory was 140.5MB in the beginning and 139.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 207.02ms. Allocated memory is still 165.7MB. Free memory was 139.4MB in the beginning and 130.2MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3891.37ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 130.2MB in the beginning and 159.7MB in the end (delta: -29.5MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Witness Printer took 2.42ms. Allocated memory is still 199.2MB. Free memory is still 159.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + unknown-#length-unknown[a] and consists of 4 locations. One deterministic module has affine ranking function -1 * i + 3 * k and consists of 7 locations. One deterministic module has affine ranking function -4 * i + unknown-#length-unknown[a] and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 28 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital151 mio100 ax100 hnf99 lsp93 ukn83 mio100 lsp50 div100 bol100 ite100 ukn100 eq167 hnf92 smp96 dnf100 smp100 tf100 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-19 17:51:15,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE