./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-lit/mcmillan2006.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b 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/loop-lit/mcmillan2006.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 45cd9f1eda35cecb580d3b7fe5199506be9e5041f2297c1c3e22e0a862fa68be --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:27:39,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:27:39,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:27:39,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:27:39,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:27:39,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:27:39,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:27:39,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:27:39,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:27:39,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:27:39,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:27:39,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:27:39,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:27:39,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:27:39,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:27:39,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:27:39,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:27:39,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:27:39,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:27:39,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:27:39,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:27:39,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:27:39,656 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:27:39,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:27:39,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:27:39,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:27:39,660 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:27:39,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:27:39,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:27:39,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:27:39,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:27:39,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:27:39,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:27:39,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:27:39,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:27:39,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:27:39,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:27:39,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:27:39,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:27:39,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:27:39,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:27:39,669 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-14 23:27:39,692 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:27:39,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:27:39,693 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:27:39,694 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:27:39,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:27:39,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:27:39,695 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:27:39,695 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:27:39,695 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:27:39,696 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:27:39,696 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:27:39,696 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:27:39,697 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:27:39,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:27:39,697 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 23:27:39,697 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:27:39,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:27:39,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 23:27:39,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:27:39,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:27:39,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:27:39,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:27:39,698 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 23:27:39,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:27:39,700 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:27:39,700 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:27:39,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:27:39,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:27:39,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:27:39,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:27:39,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:27:39,701 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:27:39,702 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:27:39,702 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45cd9f1eda35cecb580d3b7fe5199506be9e5041f2297c1c3e22e0a862fa68be [2021-12-14 23:27:39,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:27:39,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:27:39,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:27:39,912 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:27:39,912 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:27:39,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/mcmillan2006.i [2021-12-14 23:27:39,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e684769d/e90cf1f135004f11b5641681d5b011ec/FLAG576c92593 [2021-12-14 23:27:40,335 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:27:40,336 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/mcmillan2006.i [2021-12-14 23:27:40,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e684769d/e90cf1f135004f11b5641681d5b011ec/FLAG576c92593 [2021-12-14 23:27:40,356 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e684769d/e90cf1f135004f11b5641681d5b011ec [2021-12-14 23:27:40,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:27:40,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:27:40,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:27:40,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:27:40,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:27:40,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:27:40" (1/1) ... [2021-12-14 23:27:40,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b073d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:27:40, skipping insertion in model container [2021-12-14 23:27:40,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:27:40" (1/1) ... [2021-12-14 23:27:40,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:27:40,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:27:40,522 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/loop-lit/mcmillan2006.i[1009,1022] [2021-12-14 23:27:40,528 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:27:40,536 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:27:40,545 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/loop-lit/mcmillan2006.i[1009,1022] [2021-12-14 23:27:40,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:27:40,563 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:27:40,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:27:40 WrapperNode [2021-12-14 23:27:40,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:27:40,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:27:40,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:27:40,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:27:40,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:27:40" (1/1) ... [2021-12-14 23:27:40,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:27:40" (1/1) ... [2021-12-14 23:27:40,589 INFO L137 Inliner]: procedures = 18, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45 [2021-12-14 23:27:40,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:27:40,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:27:40,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:27:40,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:27:40,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:27:40" (1/1) ... [2021-12-14 23:27:40,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:27:40" (1/1) ... [2021-12-14 23:27:40,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:27:40" (1/1) ... [2021-12-14 23:27:40,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:27:40" (1/1) ... [2021-12-14 23:27:40,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:27:40" (1/1) ... [2021-12-14 23:27:40,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:27:40" (1/1) ... [2021-12-14 23:27:40,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:27:40" (1/1) ... [2021-12-14 23:27:40,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:27:40,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:27:40,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:27:40,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:27:40,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:27:40" (1/1) ... [2021-12-14 23:27:40,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:40,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:40,639 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) [2021-12-14 23:27:40,640 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 [2021-12-14 23:27:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 23:27:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 23:27:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 23:27:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 23:27:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:27:40,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:27:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 23:27:40,711 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:27:40,713 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:27:40,845 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:27:40,849 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:27:40,849 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-14 23:27:40,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:27:40 BoogieIcfgContainer [2021-12-14 23:27:40,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:27:40,856 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:27:40,856 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:27:40,877 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:27:40,878 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:27:40,878 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:27:40" (1/3) ... [2021-12-14 23:27:40,879 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@369e4e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:27:40, skipping insertion in model container [2021-12-14 23:27:40,879 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:27:40,879 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:27:40" (2/3) ... [2021-12-14 23:27:40,895 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@369e4e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:27:40, skipping insertion in model container [2021-12-14 23:27:40,895 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:27:40,896 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:27:40" (3/3) ... [2021-12-14 23:27:40,897 INFO L388 chiAutomizerObserver]: Analyzing ICFG mcmillan2006.i [2021-12-14 23:27:40,930 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:27:40,930 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:27:40,930 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:27:40,930 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:27:40,931 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:27:40,931 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:27:40,931 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:27:40,931 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:27:40,942 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:27:40,956 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-12-14 23:27:40,957 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:27:40,957 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:27:40,961 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-14 23:27:40,961 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-14 23:27:40,961 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:27:40,962 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:27:40,964 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-12-14 23:27:40,964 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:27:40,964 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:27:40,964 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-14 23:27:40,964 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-14 23:27:40,969 INFO L791 eck$LassoCheckResult]: Stem: 6#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(9, 2); 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~post3#1, main_~i~0#1, main_#t~mem5#1, main_#t~post4#1, main_~i~1#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 10#L28true assume !!(0 <= main_~n~0#1 && main_~n~0#1 <= 1000);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(4 * main_~n~0#1);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;main_~i~0#1 := 0; 15#L30-3true [2021-12-14 23:27:40,970 INFO L793 eck$LassoCheckResult]: Loop: 15#L30-3true assume !!(main_~i~0#1 < main_~n~0#1);call write~int(0, main_~x~0#1.base, main_~x~0#1.offset + 4 * main_~i~0#1, 4); 5#L30-2true main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 15#L30-3true [2021-12-14 23:27:40,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:27:40,981 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-12-14 23:27:40,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:27:40,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216563028] [2021-12-14 23:27:40,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:27:40,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:27:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:27:41,066 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:27:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:27:41,098 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:27:41,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:27:41,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2021-12-14 23:27:41,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:27:41,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022182255] [2021-12-14 23:27:41,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:27:41,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:27:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:27:41,118 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:27:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:27:41,137 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:27:41,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:27:41,138 INFO L85 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2021-12-14 23:27:41,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:27:41,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191900799] [2021-12-14 23:27:41,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:27:41,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:27:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:27:41,157 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:27:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:27:41,173 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:27:41,408 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:27:41,409 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:27:41,409 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:27:41,409 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:27:41,409 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:27:41,409 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:41,409 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:27:41,409 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:27:41,409 INFO L133 ssoRankerPreferences]: Filename of dumped script: mcmillan2006.i_Iteration1_Lasso [2021-12-14 23:27:41,409 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:27:41,410 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:27:41,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:41,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:41,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:41,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:41,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:41,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:41,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:41,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:41,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:41,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:41,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:41,799 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:27:41,802 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:27:41,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:41,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:41,805 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) [2021-12-14 23:27:41,811 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:27:41,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:27:41,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:27:41,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:27:41,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:27:41,822 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:27:41,823 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:27:41,827 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 [2021-12-14 23:27:41,836 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:27:41,855 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 [2021-12-14 23:27:41,856 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:41,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:41,858 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) [2021-12-14 23:27:41,859 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 [2021-12-14 23:27:41,860 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 [2021-12-14 23:27:41,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:27:41,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:27:41,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:27:41,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:27:41,870 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:27:41,870 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:27:41,887 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:27:41,912 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 [2021-12-14 23:27:41,912 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:41,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:41,914 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) [2021-12-14 23:27:41,915 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 [2021-12-14 23:27:41,916 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:27:41,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:27:41,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:27:41,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:27:41,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:27:41,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:27:41,925 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:27:41,925 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:27:41,928 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:27:41,943 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 [2021-12-14 23:27:41,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:41,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:41,945 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) [2021-12-14 23:27:41,946 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 [2021-12-14 23:27:41,952 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:27:41,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:27:41,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:27:41,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:27:41,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:27:41,963 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:27:41,963 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:27:41,975 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:27:42,002 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2021-12-14 23:27:42,003 INFO L444 ModelExtractionUtils]: 0 out of 16 variables were initially zero. Simplification set additionally 13 variables to zero. [2021-12-14 23:27:42,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:42,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:42,005 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) [2021-12-14 23:27:42,006 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 [2021-12-14 23:27:42,007 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:27:42,040 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-14 23:27:42,040 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:27:42,040 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2021-12-14 23:27:42,057 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 [2021-12-14 23:27:42,065 INFO L297 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2021-12-14 23:27:42,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:27:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:27:42,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 23:27:42,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:27:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:27:42,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 23:27:42,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:27:42,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:27:42,155 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-14 23:27:42,156 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2021-12-14 23:27:42,191 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 [2021-12-14 23:27:42,206 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). 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) Result 40 states and 51 transitions. Complement of second has 7 states. [2021-12-14 23:27:42,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-14 23:27:42,212 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2021-12-14 23:27:42,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2021-12-14 23:27:42,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 3 letters. Loop has 2 letters. [2021-12-14 23:27:42,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:27:42,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-14 23:27:42,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:27:42,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 3 letters. Loop has 4 letters. [2021-12-14 23:27:42,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:27:42,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 51 transitions. [2021-12-14 23:27:42,217 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-14 23:27:42,219 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 11 states and 13 transitions. [2021-12-14 23:27:42,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-14 23:27:42,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-14 23:27:42,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2021-12-14 23:27:42,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:27:42,221 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-12-14 23:27:42,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2021-12-14 23:27:42,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-12-14 23:27:42,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 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) [2021-12-14 23:27:42,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-12-14 23:27:42,236 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-12-14 23:27:42,237 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-12-14 23:27:42,237 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:27:42,237 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2021-12-14 23:27:42,237 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-14 23:27:42,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:27:42,237 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:27:42,238 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-14 23:27:42,238 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-14 23:27:42,238 INFO L791 eck$LassoCheckResult]: Stem: 121#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(9, 2); 122#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~post3#1, main_~i~0#1, main_#t~mem5#1, main_#t~post4#1, main_~i~1#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 123#L28 assume !!(0 <= main_~n~0#1 && main_~n~0#1 <= 1000);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(4 * main_~n~0#1);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;main_~i~0#1 := 0; 124#L30-3 assume !(main_~i~0#1 < main_~n~0#1); 127#L30-4 main_~i~1#1 := 0; 126#L31-3 [2021-12-14 23:27:42,238 INFO L793 eck$LassoCheckResult]: Loop: 126#L31-3 assume !!(main_~i~1#1 < main_~n~0#1);call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset + 4 * main_~i~1#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 == main_#t~mem5#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 125#L19 assume !(0 == __VERIFIER_assert_~cond#1); 117#L19-2 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem5#1; 118#L31-2 main_#t~post4#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 126#L31-3 [2021-12-14 23:27:42,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:27:42,239 INFO L85 PathProgramCache]: Analyzing trace with hash 28695884, now seen corresponding path program 1 times [2021-12-14 23:27:42,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:27:42,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237072686] [2021-12-14 23:27:42,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:27:42,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:27:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:27:42,245 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:27:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:27:42,251 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:27:42,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:27:42,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1823306, now seen corresponding path program 1 times [2021-12-14 23:27:42,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:27:42,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644654727] [2021-12-14 23:27:42,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:27:42,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:27:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:27:42,267 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:27:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:27:42,285 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:27:42,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:27:42,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1304171029, now seen corresponding path program 1 times [2021-12-14 23:27:42,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:27:42,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426273133] [2021-12-14 23:27:42,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:27:42,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:27:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:27:42,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:27:42,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:27:42,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426273133] [2021-12-14 23:27:42,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426273133] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:27:42,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:27:42,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 23:27:42,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528564051] [2021-12-14 23:27:42,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:27:42,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:27:42,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 23:27:42,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 23:27:42,417 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2021-12-14 23:27:42,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:27:42,442 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2021-12-14 23:27:42,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 23:27:42,442 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 15 transitions. [2021-12-14 23:27:42,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-14 23:27:42,447 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 13 transitions. [2021-12-14 23:27:42,447 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-12-14 23:27:42,447 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-14 23:27:42,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2021-12-14 23:27:42,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:27:42,447 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-12-14 23:27:42,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2021-12-14 23:27:42,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-12-14 23:27:42,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:27:42,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-12-14 23:27:42,448 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-12-14 23:27:42,448 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-12-14 23:27:42,448 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-14 23:27:42,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2021-12-14 23:27:42,449 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-14 23:27:42,449 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:27:42,449 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:27:42,449 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:27:42,449 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-14 23:27:42,449 INFO L791 eck$LassoCheckResult]: Stem: 160#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(9, 2); 161#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~post3#1, main_~i~0#1, main_#t~mem5#1, main_#t~post4#1, main_~i~1#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 162#L28 assume !!(0 <= main_~n~0#1 && main_~n~0#1 <= 1000);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(4 * main_~n~0#1);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;main_~i~0#1 := 0; 163#L30-3 assume !!(main_~i~0#1 < main_~n~0#1);call write~int(0, main_~x~0#1.base, main_~x~0#1.offset + 4 * main_~i~0#1, 4); 158#L30-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 159#L30-3 assume !(main_~i~0#1 < main_~n~0#1); 166#L30-4 main_~i~1#1 := 0; 165#L31-3 [2021-12-14 23:27:42,449 INFO L793 eck$LassoCheckResult]: Loop: 165#L31-3 assume !!(main_~i~1#1 < main_~n~0#1);call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset + 4 * main_~i~1#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 == main_#t~mem5#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 164#L19 assume !(0 == __VERIFIER_assert_~cond#1); 156#L19-2 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem5#1; 157#L31-2 main_#t~post4#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 165#L31-3 [2021-12-14 23:27:42,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:27:42,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1806996910, now seen corresponding path program 1 times [2021-12-14 23:27:42,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:27:42,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976254712] [2021-12-14 23:27:42,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:27:42,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:27:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:27:42,457 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:27:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:27:42,471 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:27:42,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:27:42,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1823306, now seen corresponding path program 2 times [2021-12-14 23:27:42,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:27:42,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853407055] [2021-12-14 23:27:42,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:27:42,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:27:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:27:42,483 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:27:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:27:42,490 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:27:42,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:27:42,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1358706313, now seen corresponding path program 1 times [2021-12-14 23:27:42,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:27:42,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928318425] [2021-12-14 23:27:42,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:27:42,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:27:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:27:42,508 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:27:42,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:27:42,519 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:27:42,787 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:27:42,787 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:27:42,787 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:27:42,787 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:27:42,787 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:27:42,787 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:42,787 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:27:42,787 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:27:42,787 INFO L133 ssoRankerPreferences]: Filename of dumped script: mcmillan2006.i_Iteration3_Lasso [2021-12-14 23:27:42,787 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:27:42,787 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:27:42,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:42,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:42,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:42,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:42,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:42,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:42,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:42,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:42,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:42,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:42,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:27:43,135 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:27:43,135 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:27:43,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:43,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:43,152 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) [2021-12-14 23:27:43,181 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:27:43,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:27:43,189 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:27:43,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:27:43,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:27:43,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:27:43,189 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:27:43,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:27:43,191 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 [2021-12-14 23:27:43,191 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:27:43,209 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 [2021-12-14 23:27:43,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:43,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:43,211 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) [2021-12-14 23:27:43,211 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 [2021-12-14 23:27:43,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:27:43,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:27:43,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:27:43,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:27:43,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:27:43,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:27:43,220 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:27:43,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:27:43,234 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:27:43,250 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 [2021-12-14 23:27:43,250 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:43,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:43,259 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) [2021-12-14 23:27:43,261 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 [2021-12-14 23:27:43,277 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:27:43,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:27:43,284 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:27:43,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:27:43,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:27:43,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:27:43,285 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:27:43,285 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:27:43,286 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:27:43,301 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 [2021-12-14 23:27:43,304 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:43,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:43,305 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) [2021-12-14 23:27:43,309 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 [2021-12-14 23:27:43,310 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:27:43,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:27:43,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:27:43,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:27:43,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:27:43,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:27:43,317 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:27:43,317 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:27:43,331 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:27:43,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-12-14 23:27:43,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:43,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:43,352 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) [2021-12-14 23:27:43,358 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:27:43,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:27:43,365 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:27:43,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:27:43,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:27:43,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:27:43,365 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:27:43,365 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:27:43,366 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 [2021-12-14 23:27:43,399 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:27:43,414 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 [2021-12-14 23:27:43,415 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:43,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:43,416 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) [2021-12-14 23:27:43,416 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 [2021-12-14 23:27:43,418 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:27:43,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:27:43,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:27:43,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:27:43,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:27:43,425 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:27:43,425 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:27:43,440 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:27:43,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-14 23:27:43,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:43,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:43,458 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) [2021-12-14 23:27:43,459 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 [2021-12-14 23:27:43,461 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:27:43,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:27:43,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:27:43,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:27:43,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:27:43,469 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:27:43,469 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:27:43,479 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:27:43,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-14 23:27:43,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:43,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:43,498 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) [2021-12-14 23:27:43,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:27:43,510 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 [2021-12-14 23:27:43,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:27:43,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:27:43,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:27:43,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:27:43,515 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:27:43,515 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:27:43,534 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:27:43,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-14 23:27:43,553 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:43,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:43,553 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) [2021-12-14 23:27:43,554 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 [2021-12-14 23:27:43,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:27:43,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:27:43,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:27:43,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:27:43,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:27:43,564 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:27:43,564 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:27:43,570 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:27:43,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-14 23:27:43,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:43,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:43,586 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) [2021-12-14 23:27:43,587 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 [2021-12-14 23:27:43,588 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 [2021-12-14 23:27:43,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:27:43,595 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-12-14 23:27:43,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:27:43,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:27:43,604 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-12-14 23:27:43,605 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:27:43,607 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:27:43,623 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 [2021-12-14 23:27:43,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:43,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:43,624 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) [2021-12-14 23:27:43,625 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 [2021-12-14 23:27:43,626 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:27:43,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:27:43,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:27:43,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:27:43,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:27:43,635 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:27:43,635 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:27:43,639 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:27:43,655 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 [2021-12-14 23:27:43,655 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:43,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:43,656 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) [2021-12-14 23:27:43,657 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 [2021-12-14 23:27:43,658 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:27:43,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:27:43,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:27:43,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:27:43,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:27:43,666 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:27:43,666 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:27:43,671 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:27:43,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-14 23:27:43,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:43,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:43,689 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) [2021-12-14 23:27:43,689 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 [2021-12-14 23:27:43,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:27:43,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:27:43,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:27:43,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:27:43,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:27:43,701 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:27:43,701 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:27:43,716 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:27:43,731 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2021-12-14 23:27:43,731 INFO L444 ModelExtractionUtils]: 0 out of 19 variables were initially zero. Simplification set additionally 16 variables to zero. [2021-12-14 23:27:43,731 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:27:43,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:27:43,732 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) [2021-12-14 23:27:43,733 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 [2021-12-14 23:27:43,734 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:27:43,744 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-14 23:27:43,744 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:27:43,744 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~1#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2021-12-14 23:27:43,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-12-14 23:27:43,768 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2021-12-14 23:27:43,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:27:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:27:43,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 23:27:43,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:27:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:27:43,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 23:27:43,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:27:43,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:27:43,824 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-14 23:27:43,824 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 12 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2021-12-14 23:27:43,834 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 12 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) Result 15 states and 17 transitions. Complement of second has 4 states. [2021-12-14 23:27:43,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-14 23:27:43,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2021-12-14 23:27:43,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-12-14 23:27:43,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 4 letters. [2021-12-14 23:27:43,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:27:43,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 4 letters. [2021-12-14 23:27:43,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:27:43,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 8 letters. [2021-12-14 23:27:43,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:27:43,836 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2021-12-14 23:27:43,837 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-14 23:27:43,837 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2021-12-14 23:27:43,837 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-14 23:27:43,837 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-14 23:27:43,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-14 23:27:43,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:27:43,837 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 23:27:43,838 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 23:27:43,838 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 23:27:43,838 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-14 23:27:43,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-14 23:27:43,838 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-14 23:27:43,838 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-14 23:27:43,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:27:43 BoogieIcfgContainer [2021-12-14 23:27:43,843 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:27:43,843 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:27:43,843 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:27:43,844 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:27:43,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:27:40" (3/4) ... [2021-12-14 23:27:43,846 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-14 23:27:43,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:27:43,846 INFO L158 Benchmark]: Toolchain (without parser) took 3486.39ms. Allocated memory was 102.8MB in the beginning and 153.1MB in the end (delta: 50.3MB). Free memory was 72.9MB in the beginning and 98.0MB in the end (delta: -25.0MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2021-12-14 23:27:43,847 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory was 59.2MB in the beginning and 59.2MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:27:43,847 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.47ms. Allocated memory was 102.8MB in the beginning and 153.1MB in the end (delta: 50.3MB). Free memory was 72.6MB in the beginning and 128.5MB in the end (delta: -56.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 23:27:43,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.84ms. Allocated memory is still 153.1MB. Free memory was 128.5MB in the beginning and 126.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:27:43,848 INFO L158 Benchmark]: Boogie Preprocessor took 24.49ms. Allocated memory is still 153.1MB. Free memory was 126.9MB in the beginning and 125.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:27:43,848 INFO L158 Benchmark]: RCFGBuilder took 235.14ms. Allocated memory is still 153.1MB. Free memory was 125.7MB in the beginning and 115.9MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 23:27:43,848 INFO L158 Benchmark]: BuchiAutomizer took 2987.35ms. Allocated memory is still 153.1MB. Free memory was 115.2MB in the beginning and 98.0MB in the end (delta: 17.2MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2021-12-14 23:27:43,849 INFO L158 Benchmark]: Witness Printer took 2.52ms. Allocated memory is still 153.1MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:27:43,853 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory was 59.2MB in the beginning and 59.2MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 202.47ms. Allocated memory was 102.8MB in the beginning and 153.1MB in the end (delta: 50.3MB). Free memory was 72.6MB in the beginning and 128.5MB in the end (delta: -56.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.84ms. Allocated memory is still 153.1MB. Free memory was 128.5MB in the beginning and 126.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.49ms. Allocated memory is still 153.1MB. Free memory was 126.9MB in the beginning and 125.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 235.14ms. Allocated memory is still 153.1MB. Free memory was 125.7MB in the beginning and 115.9MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2987.35ms. Allocated memory is still 153.1MB. Free memory was 115.2MB in the beginning and 98.0MB in the end (delta: 17.2MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Witness Printer took 2.52ms. Allocated memory is still 153.1MB. Free memory is still 98.0MB. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + n and consists of 5 locations. One deterministic module has affine ranking function n + -1 * i and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 31 mSDtfsCounter, 29 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital145 mio100 ax100 hnf99 lsp93 ukn83 mio100 lsp44 div100 bol100 ite100 ukn100 eq156 hnf92 smp100 dnf100 smp100 tf100 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 2 VariablesLoop: 0 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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! [2021-12-14 23:27:43,879 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 [2021-12-14 23:27:44,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE