./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/PastaC3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6c24879c 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-restricted-15/PastaC3.c -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 c651b2cf12ef151f8c483095acc3023b343707b6f3267a95c45195266139a503 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 03:11:41,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 03:11:41,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 03:11:41,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 03:11:41,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 03:11:41,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 03:11:41,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 03:11:41,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 03:11:41,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 03:11:41,368 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 03:11:41,369 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 03:11:41,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 03:11:41,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 03:11:41,372 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 03:11:41,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 03:11:41,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 03:11:41,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 03:11:41,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 03:11:41,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 03:11:41,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 03:11:41,383 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 03:11:41,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 03:11:41,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 03:11:41,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 03:11:41,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 03:11:41,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 03:11:41,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 03:11:41,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 03:11:41,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 03:11:41,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 03:11:41,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 03:11:41,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 03:11:41,395 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 03:11:41,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 03:11:41,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 03:11:41,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 03:11:41,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 03:11:41,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 03:11:41,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 03:11:41,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 03:11:41,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 03:11:41,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 03:11:41,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-13 03:11:41,423 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 03:11:41,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 03:11:41,424 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 03:11:41,424 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 03:11:41,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 03:11:41,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 03:11:41,426 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 03:11:41,426 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 03:11:41,426 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 03:11:41,426 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 03:11:41,427 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 03:11:41,427 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 03:11:41,427 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 03:11:41,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 03:11:41,427 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 03:11:41,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 03:11:41,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 03:11:41,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 03:11:41,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 03:11:41,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 03:11:41,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 03:11:41,428 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 03:11:41,428 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 03:11:41,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 03:11:41,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 03:11:41,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 03:11:41,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 03:11:41,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 03:11:41,430 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 03:11:41,430 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c651b2cf12ef151f8c483095acc3023b343707b6f3267a95c45195266139a503 [2022-07-13 03:11:41,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 03:11:41,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 03:11:41,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 03:11:41,625 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 03:11:41,625 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 03:11:41,626 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/PastaC3.c [2022-07-13 03:11:41,668 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5c99a88d/53f05f2df4b04839907ebdb237716639/FLAG8f56a6108 [2022-07-13 03:11:41,997 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 03:11:41,998 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/PastaC3.c [2022-07-13 03:11:42,001 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5c99a88d/53f05f2df4b04839907ebdb237716639/FLAG8f56a6108 [2022-07-13 03:11:42,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5c99a88d/53f05f2df4b04839907ebdb237716639 [2022-07-13 03:11:42,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 03:11:42,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 03:11:42,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 03:11:42,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 03:11:42,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 03:11:42,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:11:42" (1/1) ... [2022-07-13 03:11:42,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45fcd383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:42, skipping insertion in model container [2022-07-13 03:11:42,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:11:42" (1/1) ... [2022-07-13 03:11:42,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 03:11:42,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 03:11:42,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:11:42,581 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 03:11:42,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:11:42,598 INFO L208 MainTranslator]: Completed translation [2022-07-13 03:11:42,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:42 WrapperNode [2022-07-13 03:11:42,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 03:11:42,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 03:11:42,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 03:11:42,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 03:11:42,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:42" (1/1) ... [2022-07-13 03:11:42,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:42" (1/1) ... [2022-07-13 03:11:42,617 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-07-13 03:11:42,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 03:11:42,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 03:11:42,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 03:11:42,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 03:11:42,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:42" (1/1) ... [2022-07-13 03:11:42,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:42" (1/1) ... [2022-07-13 03:11:42,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:42" (1/1) ... [2022-07-13 03:11:42,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:42" (1/1) ... [2022-07-13 03:11:42,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:42" (1/1) ... [2022-07-13 03:11:42,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:42" (1/1) ... [2022-07-13 03:11:42,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:42" (1/1) ... [2022-07-13 03:11:42,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 03:11:42,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 03:11:42,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 03:11:42,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 03:11:42,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:42" (1/1) ... [2022-07-13 03:11:42,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:42,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:42,650 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) [2022-07-13 03:11:42,656 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 [2022-07-13 03:11:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 03:11:42,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 03:11:42,727 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 03:11:42,728 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 03:11:42,796 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 03:11:42,800 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 03:11:42,800 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 03:11:42,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:11:42 BoogieIcfgContainer [2022-07-13 03:11:42,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 03:11:42,803 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 03:11:42,803 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 03:11:42,805 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 03:11:42,806 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:11:42,806 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 03:11:42" (1/3) ... [2022-07-13 03:11:42,807 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50339ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:11:42, skipping insertion in model container [2022-07-13 03:11:42,807 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:11:42,808 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:42" (2/3) ... [2022-07-13 03:11:42,808 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50339ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:11:42, skipping insertion in model container [2022-07-13 03:11:42,808 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:11:42,808 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:11:42" (3/3) ... [2022-07-13 03:11:42,810 INFO L354 chiAutomizerObserver]: Analyzing ICFG PastaC3.c [2022-07-13 03:11:42,847 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 03:11:42,848 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 03:11:42,848 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 03:11:42,848 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 03:11:42,848 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 03:11:42,848 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 03:11:42,848 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 03:11:42,848 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 03:11:42,851 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:11:42,861 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:11:42,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:42,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:42,865 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:11:42,865 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:11:42,866 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 03:11:42,866 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:11:42,867 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:11:42,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:42,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:42,867 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:11:42,867 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:11:42,871 INFO L752 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 8#L14-2true [2022-07-13 03:11:42,871 INFO L754 eck$LassoCheckResult]: Loop: 8#L14-2true assume !!(main_~x~0#1 < main_~y~0#1); 7#L14true assume !(main_~x~0#1 < main_~z~0#1);main_~z~0#1 := 1 + main_~z~0#1; 8#L14-2true [2022-07-13 03:11:42,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:42,881 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-13 03:11:42,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:42,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512889272] [2022-07-13 03:11:42,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:42,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:42,943 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:42,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:42,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:42,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-07-13 03:11:42,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:42,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979369998] [2022-07-13 03:11:42,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:42,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:42,992 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:43,002 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:43,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:43,004 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-07-13 03:11:43,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:43,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702478869] [2022-07-13 03:11:43,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:43,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:43,017 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:43,026 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:43,111 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:43,112 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:43,112 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:43,112 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:43,112 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:11:43,112 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:43,113 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:43,113 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:43,113 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration1_Loop [2022-07-13 03:11:43,113 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:43,113 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:43,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:43,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:43,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:43,210 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:43,218 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:11:43,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:43,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:43,223 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) [2022-07-13 03:11:43,225 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 [2022-07-13 03:11:43,225 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:43,226 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:43,240 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:43,240 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:11:43,255 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 [2022-07-13 03:11:43,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:43,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:43,257 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) [2022-07-13 03:11:43,258 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 [2022-07-13 03:11:43,259 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:43,259 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:43,280 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:43,281 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:11:43,296 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 [2022-07-13 03:11:43,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:43,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:43,300 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) [2022-07-13 03:11:43,301 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 [2022-07-13 03:11:43,303 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:43,303 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:43,339 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 [2022-07-13 03:11:43,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:43,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:43,341 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) [2022-07-13 03:11:43,342 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 [2022-07-13 03:11:43,343 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:11:43,343 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:43,518 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:11:43,522 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 [2022-07-13 03:11:43,523 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:43,523 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:43,523 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:43,523 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:43,523 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:11:43,523 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:43,523 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:43,523 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:43,523 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration1_Loop [2022-07-13 03:11:43,523 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:43,524 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:43,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:43,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:43,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:43,596 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:43,599 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:11:43,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:43,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:43,602 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) [2022-07-13 03:11:43,603 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 [2022-07-13 03:11:43,604 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:43,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:43,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:43,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:43,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:43,614 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:11:43,614 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:11:43,626 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:43,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-07-13 03:11:43,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:43,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:43,645 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) [2022-07-13 03:11:43,646 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 [2022-07-13 03:11:43,647 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:43,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:43,653 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:43,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:43,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:43,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:43,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:11:43,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:43,667 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:11:43,672 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:11:43,672 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:11:43,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:43,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:43,674 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) [2022-07-13 03:11:43,676 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 [2022-07-13 03:11:43,677 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:11:43,677 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:11:43,677 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:11:43,677 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~z~0#1) = 2*ULTIMATE.start_main_~x~0#1 - 2*ULTIMATE.start_main_~z~0#1 + 1 Supporting invariants [] [2022-07-13 03:11:43,693 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 [2022-07-13 03:11:43,696 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:11:43,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:43,721 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:43,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:43,730 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:43,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:43,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:43,753 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-13 03:11:43,754 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:11:43,779 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 31 transitions. Complement of second has 6 states. [2022-07-13 03:11:43,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:11:43,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:11:43,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-07-13 03:11:43,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2022-07-13 03:11:43,786 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:43,786 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-13 03:11:43,786 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:43,786 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-13 03:11:43,786 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:43,787 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2022-07-13 03:11:43,788 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:11:43,790 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2022-07-13 03:11:43,791 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-13 03:11:43,791 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-07-13 03:11:43,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2022-07-13 03:11:43,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:43,791 INFO L369 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-13 03:11:43,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2022-07-13 03:11:43,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-07-13 03:11:43,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:11:43,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2022-07-13 03:11:43,807 INFO L392 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-13 03:11:43,807 INFO L374 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-13 03:11:43,807 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 03:11:43,807 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2022-07-13 03:11:43,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:11:43,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:43,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:43,808 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-13 03:11:43,808 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:11:43,808 INFO L752 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 69#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 70#L14-2 assume !!(main_~x~0#1 < main_~y~0#1); 71#L14 assume main_~x~0#1 < main_~z~0#1;main_~x~0#1 := 1 + main_~x~0#1; 72#L14-2 [2022-07-13 03:11:43,808 INFO L754 eck$LassoCheckResult]: Loop: 72#L14-2 assume !!(main_~x~0#1 < main_~y~0#1); 75#L14 assume !(main_~x~0#1 < main_~z~0#1);main_~z~0#1 := 1 + main_~z~0#1; 72#L14-2 [2022-07-13 03:11:43,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:43,809 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-07-13 03:11:43,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:43,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152020947] [2022-07-13 03:11:43,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:43,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:43,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:43,813 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:43,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:43,816 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:43,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:43,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2022-07-13 03:11:43,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:43,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715030650] [2022-07-13 03:11:43,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:43,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:43,820 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:43,823 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:43,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:43,823 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2022-07-13 03:11:43,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:43,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747602630] [2022-07-13 03:11:43,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:43,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:43,830 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:43,834 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:43,848 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:43,848 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:43,849 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:43,849 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:43,849 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:11:43,849 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:43,849 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:43,849 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:43,849 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration2_Loop [2022-07-13 03:11:43,849 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:43,849 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:43,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:43,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:43,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:43,882 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:43,883 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:11:43,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:43,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:43,888 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) [2022-07-13 03:11:43,889 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 [2022-07-13 03:11:43,890 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:43,890 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:43,915 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:43,916 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:11:43,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-07-13 03:11:43,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:43,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:43,976 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) [2022-07-13 03:11:43,992 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:43,992 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:44,007 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 [2022-07-13 03:11:44,013 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:44,013 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:11:44,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:44,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:44,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:44,037 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) [2022-07-13 03:11:44,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:44,058 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:44,068 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 [2022-07-13 03:11:44,083 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 [2022-07-13 03:11:44,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:44,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:44,085 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) [2022-07-13 03:11:44,097 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 [2022-07-13 03:11:44,108 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:11:44,108 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:44,150 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 [2022-07-13 03:11:44,289 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:11:44,293 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 [2022-07-13 03:11:44,293 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:44,293 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:44,293 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:44,294 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:44,294 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:11:44,294 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:44,294 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:44,294 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:44,294 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration2_Loop [2022-07-13 03:11:44,294 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:44,294 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:44,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:44,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:44,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:44,348 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:44,349 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:11:44,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:44,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:44,350 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) [2022-07-13 03:11:44,351 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 [2022-07-13 03:11:44,353 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:44,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:44,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:44,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:44,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:44,361 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:11:44,361 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:11:44,376 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:44,391 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 [2022-07-13 03:11:44,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:44,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:44,393 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) [2022-07-13 03:11:44,394 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 [2022-07-13 03:11:44,395 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:44,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:44,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:44,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:44,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:44,403 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:11:44,403 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:11:44,413 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:44,430 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 [2022-07-13 03:11:44,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:44,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:44,432 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) [2022-07-13 03:11:44,432 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 [2022-07-13 03:11:44,433 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:44,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:44,439 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:44,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:44,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:44,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:44,441 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:11:44,441 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:44,453 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:11:44,456 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:11:44,456 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:11:44,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:44,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:44,468 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) [2022-07-13 03:11:44,469 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 [2022-07-13 03:11:44,470 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:11:44,470 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:11:44,470 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:11:44,470 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~z~0#1) = 2*ULTIMATE.start_main_~x~0#1 - 2*ULTIMATE.start_main_~z~0#1 + 1 Supporting invariants [] [2022-07-13 03:11:44,485 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 [2022-07-13 03:11:44,486 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:11:44,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:44,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:44,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:44,505 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:44,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:44,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:44,508 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-13 03:11:44,508 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-07-13 03:11:44,514 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 12 states and 17 transitions. Complement of second has 5 states. [2022-07-13 03:11:44,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:11:44,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-07-13 03:11:44,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2022-07-13 03:11:44,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-13 03:11:44,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:44,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2022-07-13 03:11:44,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:44,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2022-07-13 03:11:44,517 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:44,517 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2022-07-13 03:11:44,517 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:11:44,518 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2022-07-13 03:11:44,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-07-13 03:11:44,518 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-07-13 03:11:44,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2022-07-13 03:11:44,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:44,518 INFO L369 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-07-13 03:11:44,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2022-07-13 03:11:44,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-07-13 03:11:44,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) 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) [2022-07-13 03:11:44,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2022-07-13 03:11:44,520 INFO L392 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-07-13 03:11:44,520 INFO L374 stractBuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-07-13 03:11:44,520 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-13 03:11:44,520 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2022-07-13 03:11:44,520 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:11:44,521 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:44,521 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:44,521 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2022-07-13 03:11:44,521 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:11:44,521 INFO L752 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 127#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 128#L14-2 assume !!(main_~x~0#1 < main_~y~0#1); 129#L14 assume main_~x~0#1 < main_~z~0#1;main_~x~0#1 := 1 + main_~x~0#1; 130#L14-2 assume !!(main_~x~0#1 < main_~y~0#1); 135#L14 assume main_~x~0#1 < main_~z~0#1;main_~x~0#1 := 1 + main_~x~0#1; 133#L14-2 [2022-07-13 03:11:44,521 INFO L754 eck$LassoCheckResult]: Loop: 133#L14-2 assume !!(main_~x~0#1 < main_~y~0#1); 134#L14 assume !(main_~x~0#1 < main_~z~0#1);main_~z~0#1 := 1 + main_~z~0#1; 133#L14-2 [2022-07-13 03:11:44,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:44,522 INFO L85 PathProgramCache]: Analyzing trace with hash 889692233, now seen corresponding path program 2 times [2022-07-13 03:11:44,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:44,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426682156] [2022-07-13 03:11:44,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:44,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:44,526 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:44,529 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:44,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:44,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2022-07-13 03:11:44,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:44,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665933013] [2022-07-13 03:11:44,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:44,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:44,532 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:44,534 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:44,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:44,535 INFO L85 PathProgramCache]: Analyzing trace with hash 295744366, now seen corresponding path program 2 times [2022-07-13 03:11:44,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:44,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168420742] [2022-07-13 03:11:44,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:44,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:44,540 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:44,544 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:44,555 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:44,555 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:44,555 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:44,556 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:44,556 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:11:44,556 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:44,556 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:44,556 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:44,556 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration3_Loop [2022-07-13 03:11:44,556 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:44,556 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:44,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:44,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:44,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:44,585 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:44,585 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:11:44,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:44,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:44,586 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) [2022-07-13 03:11:44,587 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 [2022-07-13 03:11:44,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:44,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:44,630 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 [2022-07-13 03:11:44,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:44,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:44,632 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:44,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-13 03:11:44,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:11:44,633 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:44,798 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:11:44,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:44,801 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:44,801 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:44,801 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:44,801 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:44,801 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:11:44,801 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:44,801 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:44,801 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:44,802 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration3_Loop [2022-07-13 03:11:44,802 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:44,802 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:44,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:44,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:44,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:44,835 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:44,835 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:11:44,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:44,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:44,836 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:44,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-13 03:11:44,839 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:44,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:44,844 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:44,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:44,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:44,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:44,845 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:11:44,845 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:44,873 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:11:44,878 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:11:44,878 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:11:44,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:44,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:44,899 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:44,943 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:11:44,943 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:11:44,943 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:11:44,943 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~z~0#1) = 2*ULTIMATE.start_main_~x~0#1 - 2*ULTIMATE.start_main_~z~0#1 + 1 Supporting invariants [] [2022-07-13 03:11:44,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-13 03:11:44,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:44,963 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:11:44,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:44,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:44,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:44,987 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:44,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:44,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:44,990 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-13 03:11:44,990 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-13 03:11:45,003 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 14 states and 21 transitions. Complement of second has 5 states. [2022-07-13 03:11:45,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:11:45,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-13 03:11:45,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2022-07-13 03:11:45,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2022-07-13 03:11:45,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:45,006 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:11:45,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:45,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:45,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:45,040 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 [2022-07-13 03:11:45,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:45,059 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:45,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:45,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:45,062 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-13 03:11:45,062 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-13 03:11:45,068 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 14 states and 21 transitions. Complement of second has 5 states. [2022-07-13 03:11:45,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:11:45,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-13 03:11:45,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2022-07-13 03:11:45,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2022-07-13 03:11:45,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:45,070 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:11:45,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:45,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:45,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:45,096 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:45,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:45,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:45,099 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-13 03:11:45,099 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-13 03:11:45,108 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 16 states and 24 transitions. Complement of second has 4 states. [2022-07-13 03:11:45,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:11:45,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-13 03:11:45,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2022-07-13 03:11:45,109 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2022-07-13 03:11:45,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:45,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2022-07-13 03:11:45,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:45,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2022-07-13 03:11:45,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:45,110 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 24 transitions. [2022-07-13 03:11:45,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-13 03:11:45,112 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 20 transitions. [2022-07-13 03:11:45,112 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-07-13 03:11:45,112 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-07-13 03:11:45,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 20 transitions. [2022-07-13 03:11:45,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:45,112 INFO L369 hiAutomatonCegarLoop]: Abstraction has 14 states and 20 transitions. [2022-07-13 03:11:45,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 20 transitions. [2022-07-13 03:11:45,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 6. [2022-07-13 03:11:45,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-07-13 03:11:45,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2022-07-13 03:11:45,113 INFO L392 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2022-07-13 03:11:45,113 INFO L374 stractBuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2022-07-13 03:11:45,114 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-13 03:11:45,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2022-07-13 03:11:45,114 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-13 03:11:45,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:45,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:45,114 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:11:45,115 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:11:45,115 INFO L752 eck$LassoCheckResult]: Stem: 283#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 284#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 285#L14-2 [2022-07-13 03:11:45,115 INFO L754 eck$LassoCheckResult]: Loop: 285#L14-2 assume !!(main_~x~0#1 < main_~y~0#1); 286#L14 assume main_~x~0#1 < main_~z~0#1;main_~x~0#1 := 1 + main_~x~0#1; 285#L14-2 [2022-07-13 03:11:45,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:45,115 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-07-13 03:11:45,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:45,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542857990] [2022-07-13 03:11:45,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:45,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:45,118 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:45,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:45,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:45,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2022-07-13 03:11:45,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:45,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067322967] [2022-07-13 03:11:45,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:45,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:45,122 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:45,124 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:45,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:45,124 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 3 times [2022-07-13 03:11:45,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:45,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004646732] [2022-07-13 03:11:45,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:45,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:45,127 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:45,129 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:45,140 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:45,141 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:45,141 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:45,141 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:45,141 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:11:45,141 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:45,141 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:45,141 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:45,141 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration4_Loop [2022-07-13 03:11:45,141 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:45,141 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:45,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:45,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:45,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:45,169 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:45,170 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:11:45,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:45,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:45,184 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:45,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-13 03:11:45,199 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:45,200 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:45,211 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:45,211 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:11:45,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:45,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:45,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:45,228 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:45,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-13 03:11:45,231 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:45,231 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:45,251 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:45,251 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:11:45,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:45,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:45,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:45,272 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:45,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-07-13 03:11:45,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:45,274 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:45,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:45,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:45,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:45,312 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:45,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-07-13 03:11:45,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:11:45,314 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:45,434 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:11:45,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:45,439 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:45,439 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:45,439 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:45,439 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:45,439 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:11:45,439 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:45,439 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:45,439 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:45,439 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration4_Loop [2022-07-13 03:11:45,439 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:45,439 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:45,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:45,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:45,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:45,486 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:45,486 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:11:45,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:45,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:45,487 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:45,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:45,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-07-13 03:11:45,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:45,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:45,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:45,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:45,506 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:11:45,506 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:11:45,522 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:45,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:45,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:45,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:45,538 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:45,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-07-13 03:11:45,540 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:45,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:45,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:45,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:45,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:45,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:45,547 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:11:45,547 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:45,554 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:11:45,557 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:11:45,557 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:11:45,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:45,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:45,558 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:45,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-07-13 03:11:45,559 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:11:45,559 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:11:45,559 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:11:45,559 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = -1*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-07-13 03:11:45,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:45,577 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:11:45,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:45,593 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:45,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:45,598 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:45,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:45,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:45,611 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:11:45,611 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:11:45,619 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 18 transitions. Complement of second has 4 states. [2022-07-13 03:11:45,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:11:45,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:11:45,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-07-13 03:11:45,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 2 letters. [2022-07-13 03:11:45,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:45,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-13 03:11:45,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:45,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-13 03:11:45,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:45,620 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 18 transitions. [2022-07-13 03:11:45,621 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:11:45,621 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2022-07-13 03:11:45,621 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-13 03:11:45,621 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-13 03:11:45,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-13 03:11:45,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:11:45,621 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:11:45,621 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:11:45,621 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:11:45,621 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-13 03:11:45,621 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-13 03:11:45,621 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:11:45,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-13 03:11:45,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 03:11:45 BoogieIcfgContainer [2022-07-13 03:11:45,626 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 03:11:45,626 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 03:11:45,626 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 03:11:45,626 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 03:11:45,627 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:11:42" (3/4) ... [2022-07-13 03:11:45,628 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 03:11:45,628 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 03:11:45,629 INFO L158 Benchmark]: Toolchain (without parser) took 3176.17ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 58.6MB in the beginning and 58.6MB in the end (delta: 23.3kB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2022-07-13 03:11:45,629 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 75.5MB. Free memory was 54.2MB in the beginning and 54.2MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:11:45,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 144.26ms. Allocated memory is still 92.3MB. Free memory was 58.4MB in the beginning and 69.8MB in the end (delta: -11.3MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-07-13 03:11:45,630 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.07ms. Allocated memory is still 92.3MB. Free memory was 69.8MB in the beginning and 68.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:11:45,630 INFO L158 Benchmark]: Boogie Preprocessor took 9.09ms. Allocated memory is still 92.3MB. Free memory was 68.5MB in the beginning and 67.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:11:45,630 INFO L158 Benchmark]: RCFGBuilder took 174.23ms. Allocated memory is still 92.3MB. Free memory was 67.4MB in the beginning and 59.8MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-13 03:11:45,630 INFO L158 Benchmark]: BuchiAutomizer took 2822.88ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 59.4MB in the beginning and 59.2MB in the end (delta: 169.8kB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2022-07-13 03:11:45,631 INFO L158 Benchmark]: Witness Printer took 2.09ms. Allocated memory is still 111.1MB. Free memory was 59.2MB in the beginning and 58.6MB in the end (delta: 623.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:11:45,632 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 75.5MB. Free memory was 54.2MB in the beginning and 54.2MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 144.26ms. Allocated memory is still 92.3MB. Free memory was 58.4MB in the beginning and 69.8MB in the end (delta: -11.3MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.07ms. Allocated memory is still 92.3MB. Free memory was 69.8MB in the beginning and 68.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 9.09ms. Allocated memory is still 92.3MB. Free memory was 68.5MB in the beginning and 67.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 174.23ms. Allocated memory is still 92.3MB. Free memory was 67.4MB in the beginning and 59.8MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 2822.88ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 59.4MB in the beginning and 59.2MB in the end (delta: 169.8kB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * Witness Printer took 2.09ms. Allocated memory is still 111.1MB. Free memory was 59.2MB in the beginning and 58.6MB in the end (delta: 623.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + -2 * z + 1 and consists of 4 locations. One deterministic module has affine ranking function 2 * x + -2 * z + 1 and consists of 3 locations. One deterministic module has affine ranking function y + -1 * x and consists of 3 locations. One nondeterministic module has affine ranking function 2 * x + -2 * z + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 27 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax187 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq143 hnf94 smp100 dnf100 smp100 tf110 neg96 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-13 03:11:45,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:45,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE