./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-memory-alloca/Velroyen-alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0301294b5b50ee43814efe2bd49b834b2b8f0455334e679e746f10ee76ed616a --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:05:08,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:05:08,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:05:08,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:05:08,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:05:08,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:05:08,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:05:08,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:05:08,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:05:08,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:05:08,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:05:08,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:05:08,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:05:08,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:05:08,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:05:08,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:05:08,538 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:05:08,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:05:08,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:05:08,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:05:08,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:05:08,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:05:08,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:05:08,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:05:08,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:05:08,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:05:08,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:05:08,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:05:08,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:05:08,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:05:08,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:05:08,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:05:08,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:05:08,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:05:08,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:05:08,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:05:08,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:05:08,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:05:08,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:05:08,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:05:08,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:05:08,569 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-14 23:05:08,599 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:05:08,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:05:08,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:05:08,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:05:08,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:05:08,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:05:08,602 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:05:08,602 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:05:08,602 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:05:08,602 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:05:08,603 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:05:08,603 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:05:08,604 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:05:08,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:05:08,604 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:05:08,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:05:08,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:05:08,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:05:08,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:05:08,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:05:08,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:05:08,605 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:05:08,605 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:05:08,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:05:08,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:05:08,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:05:08,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:05:08,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:05:08,607 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:05:08,608 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:05:08,608 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0301294b5b50ee43814efe2bd49b834b2b8f0455334e679e746f10ee76ed616a [2021-12-14 23:05:08,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:05:08,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:05:08,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:05:08,851 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:05:08,852 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:05:08,853 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i [2021-12-14 23:05:08,907 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31edbf55c/b752e7c8f7ee4ed1b094b85a661d41ca/FLAG36a39863e [2021-12-14 23:05:09,306 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:05:09,306 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i [2021-12-14 23:05:09,329 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31edbf55c/b752e7c8f7ee4ed1b094b85a661d41ca/FLAG36a39863e [2021-12-14 23:05:09,692 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31edbf55c/b752e7c8f7ee4ed1b094b85a661d41ca [2021-12-14 23:05:09,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:05:09,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:05:09,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:05:09,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:05:09,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:05:09,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:05:09" (1/1) ... [2021-12-14 23:05:09,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf10010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:09, skipping insertion in model container [2021-12-14 23:05:09,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:05:09" (1/1) ... [2021-12-14 23:05:09,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:05:09,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:05:10,023 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:05:10,032 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:05:10,083 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:05:10,103 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:05:10,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:10 WrapperNode [2021-12-14 23:05:10,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:05:10,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:05:10,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:05:10,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:05:10,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:10" (1/1) ... [2021-12-14 23:05:10,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:10" (1/1) ... [2021-12-14 23:05:10,151 INFO L137 Inliner]: procedures = 110, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2021-12-14 23:05:10,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:05:10,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:05:10,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:05:10,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:05:10,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:10" (1/1) ... [2021-12-14 23:05:10,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:10" (1/1) ... [2021-12-14 23:05:10,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:10" (1/1) ... [2021-12-14 23:05:10,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:10" (1/1) ... [2021-12-14 23:05:10,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:10" (1/1) ... [2021-12-14 23:05:10,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:10" (1/1) ... [2021-12-14 23:05:10,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:10" (1/1) ... [2021-12-14 23:05:10,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:05:10,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:05:10,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:05:10,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:05:10,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:10" (1/1) ... [2021-12-14 23:05:10,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:10,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:10,237 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 23:05:10,246 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 23:05:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 23:05:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 23:05:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 23:05:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 23:05:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:05:10,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:05:10,362 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:05:10,363 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:05:10,477 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:05:10,482 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:05:10,482 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 23:05:10,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:05:10 BoogieIcfgContainer [2021-12-14 23:05:10,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:05:10,485 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:05:10,485 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:05:10,488 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:05:10,489 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:05:10,489 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:05:09" (1/3) ... [2021-12-14 23:05:10,490 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@163856f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:05:10, skipping insertion in model container [2021-12-14 23:05:10,490 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:05:10,490 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:10" (2/3) ... [2021-12-14 23:05:10,490 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@163856f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:05:10, skipping insertion in model container [2021-12-14 23:05:10,490 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:05:10,491 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:05:10" (3/3) ... [2021-12-14 23:05:10,492 INFO L388 chiAutomizerObserver]: Analyzing ICFG Velroyen-alloca.i [2021-12-14 23:05:10,555 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:05:10,555 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:05:10,556 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:05:10,556 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:05:10,556 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:05:10,556 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:05:10,556 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:05:10,556 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:05:10,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:05:10,586 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-14 23:05:10,586 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:05:10,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:05:10,592 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-14 23:05:10,592 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-14 23:05:10,593 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:05:10,593 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:05:10,595 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-14 23:05:10,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:05:10,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:05:10,596 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-14 23:05:10,596 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-14 23:05:10,602 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; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~nondet3#1, main_#t~mem5#1, main_#t~mem6#1, main_#t~short7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem4#1, main_~x~0#1.base, main_~x~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~int(main_#t~nondet3#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet3#1; 7#L552-3true [2021-12-14 23:05:10,603 INFO L793 eck$LassoCheckResult]: Loop: 7#L552-3true call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 11#L551-1true assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 13#L552true assume !main_#t~short7#1; 3#L552-2true assume !main_#t~short7#1;havoc main_#t~mem5#1;havoc main_#t~mem6#1;havoc main_#t~short7#1;call write~int(0, main_~x~0#1.base, main_~x~0#1.offset, 4); 7#L552-3true [2021-12-14 23:05:10,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:10,628 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-14 23:05:10,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:10,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511153587] [2021-12-14 23:05:10,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:10,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:10,765 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:10,824 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:10,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:10,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1144151, now seen corresponding path program 1 times [2021-12-14 23:05:10,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:10,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861825072] [2021-12-14 23:05:10,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:10,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:10,851 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:10,882 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:10,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:10,884 INFO L85 PathProgramCache]: Analyzing trace with hash 889571353, now seen corresponding path program 1 times [2021-12-14 23:05:10,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:10,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966654383] [2021-12-14 23:05:10,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:10,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:10,907 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:10,930 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:11,243 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:05:11,244 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:05:11,244 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:05:11,245 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:05:11,245 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:05:11,245 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:11,245 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:05:11,245 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:05:11,245 INFO L133 ssoRankerPreferences]: Filename of dumped script: Velroyen-alloca.i_Iteration1_Lasso [2021-12-14 23:05:11,246 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:05:11,246 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:05:11,262 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 23:05:11,267 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 23:05:11,269 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 23:05:11,271 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 23:05:11,274 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 23:05:11,277 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 23:05:11,280 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 23:05:11,283 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 23:05:11,286 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 23:05:11,290 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 23:05:11,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,298 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 23:05:11,410 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 23:05:11,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,415 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 23:05:11,658 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:05:11,662 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:05:11,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:11,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:11,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-14 23:05:11,666 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 23:05:11,667 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:05:11,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:11,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:11,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:11,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:11,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:11,677 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:11,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:11,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:11,753 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 23:05:11,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:11,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:11,760 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 23:05:11,762 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 23:05:11,763 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict 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 23:05:11,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:11,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:11,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:11,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:11,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:11,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:11,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:11,787 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:11,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-14 23:05:11,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:11,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:11,804 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 23:05:11,811 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 23:05:11,815 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 23:05:11,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:11,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:11,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:11,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:11,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:11,818 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:11,818 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:11,820 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:11,834 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 23:05:11,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:11,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:11,836 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 23:05:11,837 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 23:05:11,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:05:11,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:11,844 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:11,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:11,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:11,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:11,845 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:11,845 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:11,846 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:11,863 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 23:05:11,863 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:11,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:11,864 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 23:05:11,865 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 23:05:11,866 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict 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 23:05:11,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:11,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:11,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:11,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:11,875 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:11,875 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:11,910 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:11,926 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 23:05:11,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:11,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:11,928 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 23:05:11,930 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 23:05:11,932 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:05:11,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:11,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:11,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:11,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:11,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:11,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:11,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:11,943 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:11,958 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 23:05:11,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:11,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:11,959 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 23:05:11,960 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 23:05:11,961 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:05:11,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:11,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:11,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:11,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:11,970 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:11,970 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:11,973 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:11,987 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 23:05:11,988 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:11,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:11,989 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 23:05:11,990 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 23:05:11,992 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict 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 23:05:11,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:11,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:11,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:11,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:12,000 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:12,000 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:12,012 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:12,027 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 23:05:12,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:12,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:12,029 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 23:05:12,030 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 23:05:12,030 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict 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 23:05:12,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:12,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:12,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:12,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:12,039 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:12,039 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:12,054 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:12,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-14 23:05:12,070 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:12,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:12,071 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 23:05:12,071 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 23:05:12,073 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:05:12,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:12,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:12,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:12,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:12,081 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:12,081 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:12,097 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:12,112 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 23:05:12,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:12,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:12,113 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 23:05:12,114 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 23:05:12,115 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:05:12,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:12,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:12,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:12,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:12,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:12,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:12,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:12,133 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:12,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:12,149 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:12,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:12,150 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 23:05:12,150 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 23:05:12,153 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict 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 23:05:12,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:12,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:12,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:12,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:12,164 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:12,164 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:12,175 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:12,203 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 23:05:12,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:12,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:12,205 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 23:05:12,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:05:12,210 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 23:05:12,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:12,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:12,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:12,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:12,219 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:12,219 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:12,234 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:12,259 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 23:05:12,259 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:12,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:12,262 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 23:05:12,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-14 23:05:12,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:12,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:12,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:12,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:12,284 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:12,285 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:12,291 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 23:05:12,307 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:12,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:12,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:12,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:12,324 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 23:05:12,324 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 23:05:12,329 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict 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 23:05:12,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:12,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:12,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:12,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:12,342 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:12,342 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:12,355 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:05:12,379 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-14 23:05:12,379 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-14 23:05:12,381 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:12,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:12,387 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 23:05:12,428 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:05:12,443 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 23:05:12,449 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-14 23:05:12,450 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:05:12,450 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_1 Supporting invariants [] [2021-12-14 23:05:12,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:12,493 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-12-14 23:05:12,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:12,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 23:05:12,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:12,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 23:05:12,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:12,678 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 23:05:12,704 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-14 23:05:12,705 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:05:12,785 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 42 states and 56 transitions. Complement of second has 10 states. [2021-12-14 23:05:12,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-14 23:05:12,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:05:12,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2021-12-14 23:05:12,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 2 letters. Loop has 4 letters. [2021-12-14 23:05:12,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:12,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2021-12-14 23:05:12,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:12,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 2 letters. Loop has 8 letters. [2021-12-14 23:05:12,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:12,794 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 56 transitions. [2021-12-14 23:05:12,797 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-14 23:05:12,799 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 23 states and 35 transitions. [2021-12-14 23:05:12,800 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-12-14 23:05:12,800 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-12-14 23:05:12,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 35 transitions. [2021-12-14 23:05:12,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:05:12,801 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 35 transitions. [2021-12-14 23:05:12,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 35 transitions. [2021-12-14 23:05:12,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2021-12-14 23:05:12,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.45) internal successors, (29), 19 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:05:12,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2021-12-14 23:05:12,821 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2021-12-14 23:05:12,821 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2021-12-14 23:05:12,821 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:05:12,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 29 transitions. [2021-12-14 23:05:12,822 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-14 23:05:12,822 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:05:12,822 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:05:12,822 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-14 23:05:12,823 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-14 23:05:12,823 INFO L791 eck$LassoCheckResult]: Stem: 127#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 128#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~nondet3#1, main_#t~mem5#1, main_#t~mem6#1, main_#t~short7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem4#1, main_~x~0#1.base, main_~x~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~int(main_#t~nondet3#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet3#1; 131#L552-3 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 126#L551-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 135#L552 assume main_#t~short7#1;call main_#t~mem6#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := main_#t~mem6#1 <= 35; 132#L552-2 [2021-12-14 23:05:12,823 INFO L793 eck$LassoCheckResult]: Loop: 132#L552-2 assume !main_#t~short7#1;havoc main_#t~mem5#1;havoc main_#t~mem6#1;havoc main_#t~short7#1;call write~int(0, main_~x~0#1.base, main_~x~0#1.offset, 4); 123#L552-3 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 124#L551-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 129#L552 assume !main_#t~short7#1; 132#L552-2 [2021-12-14 23:05:12,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:12,824 INFO L85 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2021-12-14 23:05:12,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:12,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674023119] [2021-12-14 23:05:12,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:12,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:12,835 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:12,852 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:12,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:12,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1943531, now seen corresponding path program 2 times [2021-12-14 23:05:12,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:12,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285208322] [2021-12-14 23:05:12,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:12,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:12,921 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 23:05:12,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:05:12,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285208322] [2021-12-14 23:05:12,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285208322] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:05:12,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:05:12,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 23:05:12,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766181174] [2021-12-14 23:05:12,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:05:12,928 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-14 23:05:12,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:05:12,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 23:05:12,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 23:05:12,936 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:05:12,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:05:12,965 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2021-12-14 23:05:12,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 23:05:12,966 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2021-12-14 23:05:12,969 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-14 23:05:12,970 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 20 states and 27 transitions. [2021-12-14 23:05:12,970 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-14 23:05:12,970 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-14 23:05:12,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2021-12-14 23:05:12,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:05:12,971 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-12-14 23:05:12,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2021-12-14 23:05:12,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-12-14 23:05:12,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.35) internal successors, (27), 19 states have internal predecessors, (27), 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 23:05:12,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-12-14 23:05:12,975 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-12-14 23:05:12,975 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-12-14 23:05:12,975 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-14 23:05:12,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2021-12-14 23:05:12,976 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-14 23:05:12,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:05:12,976 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:05:12,977 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-14 23:05:12,977 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-14 23:05:12,977 INFO L791 eck$LassoCheckResult]: Stem: 181#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 182#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~nondet3#1, main_#t~mem5#1, main_#t~mem6#1, main_#t~short7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem4#1, main_~x~0#1.base, main_~x~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~int(main_#t~nondet3#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet3#1; 185#L552-3 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 180#L551-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 183#L552 assume main_#t~short7#1;call main_#t~mem6#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := main_#t~mem6#1 <= 35; 186#L552-2 [2021-12-14 23:05:12,977 INFO L793 eck$LassoCheckResult]: Loop: 186#L552-2 assume main_#t~short7#1;havoc main_#t~mem5#1;havoc main_#t~mem6#1;havoc main_#t~short7#1;call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 187#L553 assume main_#t~mem8#1 < 0;havoc main_#t~mem8#1;call write~int(-5, main_~x~0#1.base, main_~x~0#1.offset, 4); 177#L552-3 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 178#L551-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 189#L552 assume !main_#t~short7#1; 186#L552-2 [2021-12-14 23:05:12,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:12,977 INFO L85 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 2 times [2021-12-14 23:05:12,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:12,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022820781] [2021-12-14 23:05:12,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:12,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:12,987 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:12,996 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:12,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:12,997 INFO L85 PathProgramCache]: Analyzing trace with hash 48745192, now seen corresponding path program 1 times [2021-12-14 23:05:12,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:12,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023648321] [2021-12-14 23:05:12,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:12,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:13,023 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 23:05:13,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:05:13,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023648321] [2021-12-14 23:05:13,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023648321] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:05:13,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:05:13,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 23:05:13,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111570145] [2021-12-14 23:05:13,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:05:13,024 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-14 23:05:13,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:05:13,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 23:05:13,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 23:05:13,025 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. cyclomatic complexity: 9 Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 23:05:13,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:05:13,093 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2021-12-14 23:05:13,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 23:05:13,096 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2021-12-14 23:05:13,101 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-12-14 23:05:13,101 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 23:05:13,102 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 28 states and 36 transitions. [2021-12-14 23:05:13,102 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-12-14 23:05:13,103 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2021-12-14 23:05:13,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 36 transitions. [2021-12-14 23:05:13,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:05:13,103 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-12-14 23:05:13,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 36 transitions. [2021-12-14 23:05:13,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 22. [2021-12-14 23:05:13,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:05:13,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2021-12-14 23:05:13,105 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-12-14 23:05:13,105 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-12-14 23:05:13,105 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-14 23:05:13,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 28 transitions. [2021-12-14 23:05:13,106 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-12-14 23:05:13,106 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:05:13,106 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:05:13,106 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-14 23:05:13,106 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-14 23:05:13,106 INFO L791 eck$LassoCheckResult]: Stem: 233#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 234#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~nondet3#1, main_#t~mem5#1, main_#t~mem6#1, main_#t~short7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem4#1, main_~x~0#1.base, main_~x~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~int(main_#t~nondet3#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet3#1; 239#L552-3 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 245#L551-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 243#L552 assume main_#t~short7#1;call main_#t~mem6#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := main_#t~mem6#1 <= 35; 229#L552-2 [2021-12-14 23:05:13,106 INFO L793 eck$LassoCheckResult]: Loop: 229#L552-2 assume main_#t~short7#1;havoc main_#t~mem5#1;havoc main_#t~mem6#1;havoc main_#t~short7#1;call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 230#L553 assume main_#t~mem8#1 < 0;havoc main_#t~mem8#1;call write~int(-5, main_~x~0#1.base, main_~x~0#1.offset, 4); 235#L552-3 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 236#L551-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 238#L552 assume main_#t~short7#1;call main_#t~mem6#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := main_#t~mem6#1 <= 35; 229#L552-2 [2021-12-14 23:05:13,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:13,107 INFO L85 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 3 times [2021-12-14 23:05:13,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:13,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108680151] [2021-12-14 23:05:13,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:13,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:13,120 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:13,128 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:13,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:13,129 INFO L85 PathProgramCache]: Analyzing trace with hash 48745190, now seen corresponding path program 1 times [2021-12-14 23:05:13,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:13,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443699420] [2021-12-14 23:05:13,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:13,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:13,137 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:13,144 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:13,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:13,145 INFO L85 PathProgramCache]: Analyzing trace with hash 707540352, now seen corresponding path program 1 times [2021-12-14 23:05:13,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:13,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672105330] [2021-12-14 23:05:13,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:13,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:13,156 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:13,166 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:13,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:05:13 BoogieIcfgContainer [2021-12-14 23:05:13,504 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:05:13,505 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:05:13,505 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:05:13,505 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:05:13,505 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:05:10" (3/4) ... [2021-12-14 23:05:13,507 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-14 23:05:13,534 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 23:05:13,534 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:05:13,536 INFO L158 Benchmark]: Toolchain (without parser) took 3836.13ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 68.2MB in the beginning and 57.2MB in the end (delta: 11.0MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2021-12-14 23:05:13,537 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:05:13,538 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.79ms. Allocated memory is still 96.5MB. Free memory was 68.0MB in the beginning and 67.8MB in the end (delta: 202.2kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-14 23:05:13,538 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.27ms. Allocated memory is still 96.5MB. Free memory was 67.8MB in the beginning and 66.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:05:13,539 INFO L158 Benchmark]: Boogie Preprocessor took 38.44ms. Allocated memory is still 96.5MB. Free memory was 66.1MB in the beginning and 64.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:05:13,539 INFO L158 Benchmark]: RCFGBuilder took 292.98ms. Allocated memory is still 96.5MB. Free memory was 64.7MB in the beginning and 54.8MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 23:05:13,540 INFO L158 Benchmark]: BuchiAutomizer took 3018.99ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 54.8MB in the beginning and 59.0MB in the end (delta: -4.1MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2021-12-14 23:05:13,540 INFO L158 Benchmark]: Witness Printer took 29.48ms. Allocated memory is still 117.4MB. Free memory was 58.1MB in the beginning and 57.2MB in the end (delta: 887.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:05:13,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.79ms. Allocated memory is still 96.5MB. Free memory was 68.0MB in the beginning and 67.8MB in the end (delta: 202.2kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.27ms. Allocated memory is still 96.5MB. Free memory was 67.8MB in the beginning and 66.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.44ms. Allocated memory is still 96.5MB. Free memory was 66.1MB in the beginning and 64.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 292.98ms. Allocated memory is still 96.5MB. Free memory was 64.7MB in the beginning and 54.8MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3018.99ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 54.8MB in the beginning and 59.0MB in the end (delta: -4.1MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * Witness Printer took 29.48ms. Allocated memory is still 117.4MB. Free memory was 58.1MB in the beginning and 57.2MB in the end (delta: 887.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (2 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] and consists of 6 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 22 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 22 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 29 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital98 mio100 ax118 hnf100 lsp79 ukn77 mio100 lsp42 div100 bol100 ite100 ukn100 eq153 hnf91 smp92 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 552]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {x=2, x=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@4283f076=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52139931=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@ad97df0=-5, NULL=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTBinaryExpression@37b64dac=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@570e3c55=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@1fe9be76=-5, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@68822295=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@59a7fcc6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@6dfb011e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@570e3c55=2} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 552]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L549] int* x = __builtin_alloca (sizeof(int)); [L550] *x = __VERIFIER_nondet_int() [L551] EXPR \read(*x) [L551] COND TRUE *x != 0 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 Loop: [L552] COND TRUE -5 <= *x && *x <= 35 [L553] EXPR \read(*x) [L553] COND TRUE *x < 0 [L554] *x = -5 [L551] EXPR \read(*x) [L551] COND TRUE *x != 0 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-14 23:05:13,587 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)