./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/aaron3-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 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-crafted/aaron3-1.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 ea9406930e45e60de12baf697b969fb5af8dbe89b8e2edfb7dfc533c91e7fcaa --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 14:13:09,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 14:13:09,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 14:13:09,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 14:13:09,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 14:13:09,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 14:13:09,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 14:13:09,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 14:13:09,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 14:13:09,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 14:13:09,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 14:13:09,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 14:13:09,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 14:13:09,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 14:13:09,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 14:13:09,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 14:13:09,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 14:13:09,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 14:13:09,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 14:13:09,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 14:13:09,528 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 14:13:09,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 14:13:09,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 14:13:09,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 14:13:09,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 14:13:09,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 14:13:09,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 14:13:09,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 14:13:09,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 14:13:09,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 14:13:09,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 14:13:09,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 14:13:09,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 14:13:09,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 14:13:09,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 14:13:09,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 14:13:09,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 14:13:09,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 14:13:09,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 14:13:09,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 14:13:09,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 14:13:09,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 14:13:09,551 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-23 14:13:09,585 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 14:13:09,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 14:13:09,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 14:13:09,586 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 14:13:09,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 14:13:09,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 14:13:09,588 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 14:13:09,588 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 14:13:09,588 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 14:13:09,588 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 14:13:09,589 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 14:13:09,589 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 14:13:09,589 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 14:13:09,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 14:13:09,589 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 14:13:09,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 14:13:09,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 14:13:09,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 14:13:09,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 14:13:09,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 14:13:09,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 14:13:09,590 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 14:13:09,591 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 14:13:09,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 14:13:09,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 14:13:09,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 14:13:09,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 14:13:09,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 14:13:09,592 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 14:13:09,593 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea9406930e45e60de12baf697b969fb5af8dbe89b8e2edfb7dfc533c91e7fcaa [2022-07-23 14:13:09,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 14:13:09,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 14:13:09,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 14:13:09,860 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 14:13:09,860 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 14:13:09,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/aaron3-1.c [2022-07-23 14:13:09,939 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c67f6ab42/c3a731814eef492dbddbc52201e7b916/FLAG0cd4ce2c0 [2022-07-23 14:13:10,284 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 14:13:10,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/aaron3-1.c [2022-07-23 14:13:10,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c67f6ab42/c3a731814eef492dbddbc52201e7b916/FLAG0cd4ce2c0 [2022-07-23 14:13:10,298 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c67f6ab42/c3a731814eef492dbddbc52201e7b916 [2022-07-23 14:13:10,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 14:13:10,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 14:13:10,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 14:13:10,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 14:13:10,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 14:13:10,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:13:10" (1/1) ... [2022-07-23 14:13:10,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@539a9269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:10, skipping insertion in model container [2022-07-23 14:13:10,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:13:10" (1/1) ... [2022-07-23 14:13:10,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 14:13:10,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 14:13:10,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:13:10,529 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 14:13:10,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:13:10,556 INFO L208 MainTranslator]: Completed translation [2022-07-23 14:13:10,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:10 WrapperNode [2022-07-23 14:13:10,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 14:13:10,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 14:13:10,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 14:13:10,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 14:13:10,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:10" (1/1) ... [2022-07-23 14:13:10,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:10" (1/1) ... [2022-07-23 14:13:10,586 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2022-07-23 14:13:10,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 14:13:10,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 14:13:10,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 14:13:10,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 14:13:10,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:10" (1/1) ... [2022-07-23 14:13:10,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:10" (1/1) ... [2022-07-23 14:13:10,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:10" (1/1) ... [2022-07-23 14:13:10,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:10" (1/1) ... [2022-07-23 14:13:10,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:10" (1/1) ... [2022-07-23 14:13:10,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:10" (1/1) ... [2022-07-23 14:13:10,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:10" (1/1) ... [2022-07-23 14:13:10,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 14:13:10,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 14:13:10,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 14:13:10,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 14:13:10,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:10" (1/1) ... [2022-07-23 14:13:10,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:10,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:10,633 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) [2022-07-23 14:13:10,644 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 [2022-07-23 14:13:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 14:13:10,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 14:13:10,723 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 14:13:10,724 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 14:13:10,801 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 14:13:10,807 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 14:13:10,808 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 14:13:10,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:13:10 BoogieIcfgContainer [2022-07-23 14:13:10,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 14:13:10,811 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 14:13:10,811 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 14:13:10,814 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 14:13:10,814 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:13:10,815 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 02:13:10" (1/3) ... [2022-07-23 14:13:10,816 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14bcf1c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:13:10, skipping insertion in model container [2022-07-23 14:13:10,816 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:13:10,816 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:10" (2/3) ... [2022-07-23 14:13:10,816 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14bcf1c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:13:10, skipping insertion in model container [2022-07-23 14:13:10,817 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:13:10,817 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:13:10" (3/3) ... [2022-07-23 14:13:10,818 INFO L354 chiAutomizerObserver]: Analyzing ICFG aaron3-1.c [2022-07-23 14:13:10,863 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 14:13:10,863 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 14:13:10,863 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 14:13:10,863 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 14:13:10,863 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 14:13:10,864 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 14:13:10,864 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 14:13:10,864 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 14:13:10,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:13:10,882 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-23 14:13:10,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:13:10,883 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:13:10,887 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-07-23 14:13:10,888 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:13:10,888 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 14:13:10,888 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:13:10,890 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-23 14:13:10,890 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:13:10,890 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:13:10,890 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-07-23 14:13:10,890 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:13:10,895 INFO L752 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#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_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~z~0#1, main_~tx~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_~tx~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;main_~tx~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 10#L22true assume !!(-1073741823 <= main_~tx~0#1 && main_~tx~0#1 <= 1073741823); 12#L23true assume !!(-1073741823 <= main_~z~0#1 && main_~z~0#1 <= 1073741823); 13#L24true assume !!(-1073741823 <= main_~x~0#1 && main_~x~0#1 <= 1073741823); 5#L25true assume !!(main_~y~0#1 <= 1073741823); 9#L27-2true [2022-07-23 14:13:10,896 INFO L754 eck$LassoCheckResult]: Loop: 9#L27-2true assume !!(main_~x~0#1 >= main_~y~0#1 && main_~x~0#1 <= main_~tx~0#1 + main_~z~0#1); 4#L27true assume !(0 != main_#t~nondet4#1);havoc main_#t~nondet4#1;main_~y~0#1 := 1 + main_~y~0#1; 9#L27-2true [2022-07-23 14:13:10,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:10,901 INFO L85 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2022-07-23 14:13:10,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:10,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683878561] [2022-07-23 14:13:10,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:10,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:10,976 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:10,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:10,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:10,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1963, now seen corresponding path program 1 times [2022-07-23 14:13:10,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:10,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41164608] [2022-07-23 14:13:10,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:11,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:11,022 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:11,027 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:11,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:11,029 INFO L85 PathProgramCache]: Analyzing trace with hash 179567799, now seen corresponding path program 1 times [2022-07-23 14:13:11,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:11,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838400380] [2022-07-23 14:13:11,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:11,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:11,056 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:11,068 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:11,152 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:13:11,153 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:13:11,153 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:13:11,153 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:13:11,154 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:13:11,154 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:11,154 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:13:11,154 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:13:11,154 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration1_Loop [2022-07-23 14:13:11,154 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:13:11,155 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:13:11,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:11,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:11,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:11,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:11,274 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:13:11,275 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:13:11,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:11,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:11,279 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) [2022-07-23 14:13:11,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:11,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:11,291 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 [2022-07-23 14:13:11,309 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:13:11,309 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: [] [2022-07-23 14:13:11,330 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 [2022-07-23 14:13:11,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:11,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:11,331 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) [2022-07-23 14:13:11,333 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 [2022-07-23 14:13:11,334 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:11,334 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:11,352 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:13:11,352 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: [] [2022-07-23 14:13:11,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-23 14:13:11,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:11,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:11,372 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) [2022-07-23 14:13:11,373 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 [2022-07-23 14:13:11,374 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:11,374 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:11,398 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:13:11,398 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4#1=0} Honda state: {ULTIMATE.start_main_#t~nondet4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:13:11,420 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 [2022-07-23 14:13:11,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:11,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:11,423 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) [2022-07-23 14:13:11,435 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 [2022-07-23 14:13:11,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:11,437 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:11,466 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 [2022-07-23 14:13:11,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:11,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:11,468 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) [2022-07-23 14:13:11,469 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 [2022-07-23 14:13:11,470 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:13:11,470 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:11,682 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:13:11,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-23 14:13:11,687 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:13:11,687 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:13:11,687 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:13:11,687 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:13:11,687 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:13:11,687 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:11,687 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:13:11,687 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:13:11,687 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration1_Loop [2022-07-23 14:13:11,688 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:13:11,688 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:13:11,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:11,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:11,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:11,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:11,760 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:13:11,764 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:13:11,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:11,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:11,768 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) [2022-07-23 14:13:11,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:13:11,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:11,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:11,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:11,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:11,788 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 [2022-07-23 14:13:11,791 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:13:11,792 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:13:11,806 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:13:11,826 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 [2022-07-23 14:13:11,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:11,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:11,828 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) [2022-07-23 14:13:11,828 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 [2022-07-23 14:13:11,830 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:13:11,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:11,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:11,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:11,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:11,844 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:13:11,844 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:13:11,860 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:13:11,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-07-23 14:13:11,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:11,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:11,882 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) [2022-07-23 14:13:11,892 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 [2022-07-23 14:13:11,893 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:13:11,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:11,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:13:11,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:11,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:11,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:11,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:13:11,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:13:11,916 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:13:11,932 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 [2022-07-23 14:13:11,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:11,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:11,934 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) [2022-07-23 14:13:11,935 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 [2022-07-23 14:13:11,938 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:13:11,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:11,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:13:11,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:11,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:11,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:11,946 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:13:11,946 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:13:11,953 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:13:11,957 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-23 14:13:11,957 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-23 14:13:11,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:11,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:11,964 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) [2022-07-23 14:13:11,972 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 [2022-07-23 14:13:11,973 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:13:11,973 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:13:11,973 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:13:11,974 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~x~0#1 - 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2022-07-23 14:13:11,991 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 [2022-07-23 14:13:11,994 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:13:12,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:12,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:13:12,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:12,058 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:13:12,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:12,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:13:12,103 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 [2022-07-23 14:13:12,104 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-07-23 14:13:12,154 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) Result 32 states and 43 transitions. Complement of second has 8 states. [2022-07-23 14:13:12,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 14:13:12,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-07-23 14:13:12,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2022-07-23 14:13:12,167 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 6 letters. Loop has 2 letters. [2022-07-23 14:13:12,168 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:12,168 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 8 letters. Loop has 2 letters. [2022-07-23 14:13:12,169 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:12,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 6 letters. Loop has 4 letters. [2022-07-23 14:13:12,169 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:12,170 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 43 transitions. [2022-07-23 14:13:12,177 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-23 14:13:12,180 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 13 states and 16 transitions. [2022-07-23 14:13:12,181 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-07-23 14:13:12,182 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-07-23 14:13:12,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2022-07-23 14:13:12,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:13:12,183 INFO L369 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2022-07-23 14:13:12,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2022-07-23 14:13:12,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-07-23 14:13:12,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:13:12,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2022-07-23 14:13:12,205 INFO L392 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2022-07-23 14:13:12,205 INFO L374 stractBuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2022-07-23 14:13:12,205 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 14:13:12,208 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2022-07-23 14:13:12,210 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-23 14:13:12,210 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:13:12,211 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:13:12,211 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 14:13:12,211 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-23 14:13:12,211 INFO L752 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 100#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_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~z~0#1, main_~tx~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_~tx~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;main_~tx~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 97#L22 assume !!(-1073741823 <= main_~tx~0#1 && main_~tx~0#1 <= 1073741823); 98#L23 assume !!(-1073741823 <= main_~z~0#1 && main_~z~0#1 <= 1073741823); 107#L24 assume !!(-1073741823 <= main_~x~0#1 && main_~x~0#1 <= 1073741823); 105#L25 assume !!(main_~y~0#1 <= 1073741823); 106#L27-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~x~0#1 <= main_~tx~0#1 + main_~z~0#1); 101#L27 assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~z~0#1 := main_~z~0#1 - 1;main_~tx~0#1 := main_~x~0#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 102#L31 [2022-07-23 14:13:12,212 INFO L754 eck$LassoCheckResult]: Loop: 102#L31 assume !!(-1073741823 <= main_~x~0#1 && main_~x~0#1 <= 1073741823); 108#L27-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~x~0#1 <= main_~tx~0#1 + main_~z~0#1); 109#L27 assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~z~0#1 := main_~z~0#1 - 1;main_~tx~0#1 := main_~x~0#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 102#L31 [2022-07-23 14:13:12,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:12,212 INFO L85 PathProgramCache]: Analyzing trace with hash 179567792, now seen corresponding path program 1 times [2022-07-23 14:13:12,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:12,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761566482] [2022-07-23 14:13:12,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:12,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:12,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:12,221 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:12,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:12,228 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:12,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:12,229 INFO L85 PathProgramCache]: Analyzing trace with hash 68265, now seen corresponding path program 1 times [2022-07-23 14:13:12,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:12,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693057778] [2022-07-23 14:13:12,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:12,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:12,235 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:12,239 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:12,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:12,240 INFO L85 PathProgramCache]: Analyzing trace with hash -2025120870, now seen corresponding path program 1 times [2022-07-23 14:13:12,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:12,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910005375] [2022-07-23 14:13:12,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:12,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:12,250 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:12,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:12,301 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:13:12,301 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:13:12,301 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:13:12,301 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:13:12,301 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:13:12,301 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:12,302 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:13:12,302 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:13:12,302 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration2_Loop [2022-07-23 14:13:12,302 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:13:12,302 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:13:12,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:12,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:12,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:12,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:12,378 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:13:12,378 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:13:12,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:12,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:12,380 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) [2022-07-23 14:13:12,408 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:12,408 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:12,408 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 [2022-07-23 14:13:12,426 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:13:12,426 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: [] [2022-07-23 14:13:12,455 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 [2022-07-23 14:13:12,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:12,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:12,457 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) [2022-07-23 14:13:12,458 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 [2022-07-23 14:13:12,460 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:12,460 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:12,481 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:13:12,481 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: [] [2022-07-23 14:13:12,507 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 [2022-07-23 14:13:12,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:12,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:12,510 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) [2022-07-23 14:13:12,511 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 [2022-07-23 14:13:12,513 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:12,513 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:12,565 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 [2022-07-23 14:13:12,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:12,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:12,567 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) [2022-07-23 14:13:12,569 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 [2022-07-23 14:13:12,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:13:12,570 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:12,617 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:13:12,624 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 [2022-07-23 14:13:12,625 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:13:12,625 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:13:12,625 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:13:12,625 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:13:12,625 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:13:12,625 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:12,625 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:13:12,625 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:13:12,625 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration2_Loop [2022-07-23 14:13:12,625 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:13:12,625 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:13:12,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:12,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:12,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:12,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:12,728 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:13:12,728 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:13:12,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:12,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:12,736 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) [2022-07-23 14:13:12,738 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 [2022-07-23 14:13:12,740 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:13:12,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:12,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:12,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:12,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:12,753 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:13:12,753 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:13:12,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:13:12,791 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 [2022-07-23 14:13:12,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:12,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:12,793 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) [2022-07-23 14:13:12,793 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 [2022-07-23 14:13:12,795 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:13:12,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:12,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:13:12,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:12,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:12,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:12,804 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:13:12,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:13:12,819 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:13:12,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-07-23 14:13:12,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:12,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:12,842 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) [2022-07-23 14:13:12,844 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 [2022-07-23 14:13:12,845 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:13:12,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:12,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:12,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:12,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:12,854 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:13:12,854 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:13:12,864 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:13:12,891 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 [2022-07-23 14:13:12,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:12,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:12,893 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) [2022-07-23 14:13:12,895 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 [2022-07-23 14:13:12,897 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:13:12,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:12,905 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:13:12,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:12,905 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-23 14:13:12,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:12,906 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-23 14:13:12,906 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:13:12,920 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:13:12,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-07-23 14:13:12,940 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-07-23 14:13:12,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:12,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:12,941 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) [2022-07-23 14:13:12,945 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 [2022-07-23 14:13:12,947 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:13:12,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:12,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:12,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:12,954 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-07-23 14:13:12,957 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2022-07-23 14:13:12,957 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2022-07-23 14:13:12,983 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:13:13,002 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 [2022-07-23 14:13:13,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:13,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:13,004 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) [2022-07-23 14:13:13,005 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 [2022-07-23 14:13:13,006 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:13:13,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:13,013 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:13:13,013 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:13,013 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:13,013 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-07-23 14:13:13,017 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-07-23 14:13:13,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:13:13,051 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:13:13,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-07-23 14:13:13,057 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2022-07-23 14:13:13,057 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-23 14:13:13,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:13,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:13,064 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) [2022-07-23 14:13:13,065 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 [2022-07-23 14:13:13,067 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:13:13,067 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:13:13,067 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:13:13,067 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*ULTIMATE.start_main_~z~0#1 f1 = 2*ULTIMATE.start_main_~z~0#1 + 2*ULTIMATE.start_main_~tx~0#1 + 2147483647 Supporting invariants [] [2022-07-23 14:13:13,083 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2022-07-23 14:13:13,085 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:13:13,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:13,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:13:13,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:13,132 WARN L261 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 14:13:13,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:13,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:13:13,312 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-23 14:13:13,312 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-07-23 14:13:13,390 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 23 transitions. Complement of second has 6 states. [2022-07-23 14:13:13,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 14:13:13,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-07-23 14:13:13,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-07-23 14:13:13,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 3 letters. [2022-07-23 14:13:13,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:13,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 3 letters. [2022-07-23 14:13:13,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:13,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 6 letters. [2022-07-23 14:13:13,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:13,392 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2022-07-23 14:13:13,393 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:13:13,393 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 23 transitions. [2022-07-23 14:13:13,393 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-07-23 14:13:13,394 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-07-23 14:13:13,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2022-07-23 14:13:13,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:13:13,394 INFO L369 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-07-23 14:13:13,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2022-07-23 14:13:13,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2022-07-23 14:13:13,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 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) [2022-07-23 14:13:13,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2022-07-23 14:13:13,396 INFO L392 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2022-07-23 14:13:13,396 INFO L374 stractBuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2022-07-23 14:13:13,396 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-23 14:13:13,396 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2022-07-23 14:13:13,396 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:13:13,396 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:13:13,396 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:13:13,397 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 14:13:13,397 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:13:13,397 INFO L752 eck$LassoCheckResult]: Stem: 191#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 192#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_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~z~0#1, main_~tx~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_~tx~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;main_~tx~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 189#L22 assume !!(-1073741823 <= main_~tx~0#1 && main_~tx~0#1 <= 1073741823); 190#L23 assume !!(-1073741823 <= main_~z~0#1 && main_~z~0#1 <= 1073741823); 199#L24 assume !!(-1073741823 <= main_~x~0#1 && main_~x~0#1 <= 1073741823); 197#L25 assume !!(main_~y~0#1 <= 1073741823); 198#L27-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~x~0#1 <= main_~tx~0#1 + main_~z~0#1); 203#L27 assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~z~0#1 := main_~z~0#1 - 1;main_~tx~0#1 := main_~x~0#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 200#L31 assume !!(-1073741823 <= main_~x~0#1 && main_~x~0#1 <= 1073741823); 194#L27-2 [2022-07-23 14:13:13,397 INFO L754 eck$LassoCheckResult]: Loop: 194#L27-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~x~0#1 <= main_~tx~0#1 + main_~z~0#1); 193#L27 assume !(0 != main_#t~nondet4#1);havoc main_#t~nondet4#1;main_~y~0#1 := 1 + main_~y~0#1; 194#L27-2 [2022-07-23 14:13:13,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:13,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1271634295, now seen corresponding path program 2 times [2022-07-23 14:13:13,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:13,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334088457] [2022-07-23 14:13:13,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:13,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:13,405 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:13,411 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:13,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:13,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1963, now seen corresponding path program 2 times [2022-07-23 14:13:13,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:13,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137254284] [2022-07-23 14:13:13,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:13,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:13,415 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:13,418 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:13,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:13,418 INFO L85 PathProgramCache]: Analyzing trace with hash -2025120863, now seen corresponding path program 1 times [2022-07-23 14:13:13,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:13,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27332777] [2022-07-23 14:13:13,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:13,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:13,438 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:13,447 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:13,470 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:13:13,470 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:13:13,470 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:13:13,471 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:13:13,471 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:13:13,471 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:13,471 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:13:13,471 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:13:13,471 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration3_Loop [2022-07-23 14:13:13,471 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:13:13,471 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:13:13,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:13,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:13,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:13,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:13,525 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:13:13,526 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:13:13,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:13,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:13,527 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) [2022-07-23 14:13:13,528 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 [2022-07-23 14:13:13,529 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:13,529 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:13,583 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 [2022-07-23 14:13:13,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:13,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:13,585 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) [2022-07-23 14:13:13,587 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 [2022-07-23 14:13:13,588 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:13:13,588 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:13,786 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:13:13,790 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 [2022-07-23 14:13:13,790 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:13:13,791 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:13:13,791 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:13:13,791 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:13:13,791 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:13:13,791 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:13,791 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:13:13,791 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:13:13,791 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration3_Loop [2022-07-23 14:13:13,791 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:13:13,791 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:13:13,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:13,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:13,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:13,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:13,846 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:13:13,846 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:13:13,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:13,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:13,848 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) [2022-07-23 14:13:13,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:13:13,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:13,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:13:13,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:13,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:13,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:13,865 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:13:13,865 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:13:13,867 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 [2022-07-23 14:13:13,883 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:13:13,886 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-23 14:13:13,886 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-23 14:13:13,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:13,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:13,889 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) [2022-07-23 14:13:13,890 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 [2022-07-23 14:13:13,890 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:13:13,890 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:13:13,891 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:13:13,891 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~x~0#1 - 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2022-07-23 14:13:13,914 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-07-23 14:13:13,915 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:13:13,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:13,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:13,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:13:13,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:13,973 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:13:13,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:13,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:13:13,985 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 [2022-07-23 14:13:13,985 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:13:13,995 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 30 transitions. Complement of second has 5 states. [2022-07-23 14:13:13,995 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 [2022-07-23 14:13:13,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:13:13,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2022-07-23 14:13:13,996 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 9 letters. Loop has 2 letters. [2022-07-23 14:13:13,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:13,997 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 2 letters. [2022-07-23 14:13:13,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:13,997 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 9 letters. Loop has 4 letters. [2022-07-23 14:13:13,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:13,997 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2022-07-23 14:13:13,998 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:13:13,999 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 19 states and 24 transitions. [2022-07-23 14:13:13,999 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-07-23 14:13:13,999 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-07-23 14:13:13,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2022-07-23 14:13:13,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:13:13,999 INFO L369 hiAutomatonCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-07-23 14:13:13,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2022-07-23 14:13:14,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-23 14:13:14,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 18 states have internal predecessors, (24), 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) [2022-07-23 14:13:14,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2022-07-23 14:13:14,006 INFO L392 hiAutomatonCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-07-23 14:13:14,006 INFO L374 stractBuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-07-23 14:13:14,006 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-23 14:13:14,007 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2022-07-23 14:13:14,007 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:13:14,007 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:13:14,007 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:13:14,008 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-23 14:13:14,008 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:13:14,008 INFO L752 eck$LassoCheckResult]: Stem: 284#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 285#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_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~z~0#1, main_~tx~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_~tx~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;main_~tx~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 282#L22 assume !!(-1073741823 <= main_~tx~0#1 && main_~tx~0#1 <= 1073741823); 283#L23 assume !!(-1073741823 <= main_~z~0#1 && main_~z~0#1 <= 1073741823); 292#L24 assume !!(-1073741823 <= main_~x~0#1 && main_~x~0#1 <= 1073741823); 290#L25 assume !!(main_~y~0#1 <= 1073741823); 291#L27-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~x~0#1 <= main_~tx~0#1 + main_~z~0#1); 298#L27 assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~z~0#1 := main_~z~0#1 - 1;main_~tx~0#1 := main_~x~0#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 293#L31 assume !!(-1073741823 <= main_~x~0#1 && main_~x~0#1 <= 1073741823); 289#L27-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~x~0#1 <= main_~tx~0#1 + main_~z~0#1); 297#L27 assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~z~0#1 := main_~z~0#1 - 1;main_~tx~0#1 := main_~x~0#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 294#L31 assume !!(-1073741823 <= main_~x~0#1 && main_~x~0#1 <= 1073741823); 287#L27-2 [2022-07-23 14:13:14,008 INFO L754 eck$LassoCheckResult]: Loop: 287#L27-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~x~0#1 <= main_~tx~0#1 + main_~z~0#1); 286#L27 assume !(0 != main_#t~nondet4#1);havoc main_#t~nondet4#1;main_~y~0#1 := 1 + main_~y~0#1; 287#L27-2 [2022-07-23 14:13:14,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:14,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1645762509, now seen corresponding path program 3 times [2022-07-23 14:13:14,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:14,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782592145] [2022-07-23 14:13:14,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:14,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:14,016 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:14,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:14,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:14,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1963, now seen corresponding path program 3 times [2022-07-23 14:13:14,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:14,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462617000] [2022-07-23 14:13:14,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:14,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:14,050 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:14,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:14,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:14,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1029807223, now seen corresponding path program 2 times [2022-07-23 14:13:14,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:14,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945310440] [2022-07-23 14:13:14,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:14,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:14,063 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:14,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:14,082 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:14,102 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:13:14,102 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:13:14,102 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:13:14,102 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:13:14,102 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:13:14,102 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:14,102 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:13:14,103 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:13:14,103 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration4_Loop [2022-07-23 14:13:14,103 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:13:14,103 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:13:14,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:14,106 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 [2022-07-23 14:13:14,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:14,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:14,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:14,152 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:13:14,152 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:13:14,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:14,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:14,156 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 [2022-07-23 14:13:14,160 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) [2022-07-23 14:13:14,161 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 [2022-07-23 14:13:14,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:14,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:14,175 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:13:14,175 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: [] [2022-07-23 14:13:14,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-07-23 14:13:14,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:14,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:14,192 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:13:14,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-07-23 14:13:14,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:14,195 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:14,202 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:13:14,202 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4#1=0} Honda state: {ULTIMATE.start_main_#t~nondet4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:13:14,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-07-23 14:13:14,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:14,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:14,220 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:13:14,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-07-23 14:13:14,226 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:14,226 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:14,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-07-23 14:13:14,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:14,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:14,250 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:13:14,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-07-23 14:13:14,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:13:14,252 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:14,451 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:13:14,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-07-23 14:13:14,455 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:13:14,455 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:13:14,455 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:13:14,456 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:13:14,456 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:13:14,456 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:14,456 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:13:14,456 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:13:14,456 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration4_Loop [2022-07-23 14:13:14,456 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:13:14,456 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:13:14,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:14,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:14,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:14,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:14,520 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:13:14,521 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:13:14,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:14,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:14,522 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:13:14,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-07-23 14:13:14,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:13:14,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:14,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:13:14,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:14,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:14,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:14,533 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:13:14,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:13:14,546 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:13:14,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-07-23 14:13:14,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:14,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:14,574 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:13:14,580 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:13:14,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:14,588 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:13:14,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:14,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:14,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:14,589 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:13:14,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:13:14,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-07-23 14:13:14,603 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:13:14,606 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-23 14:13:14,606 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-23 14:13:14,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:14,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:14,608 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:13:14,611 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:13:14,611 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:13:14,611 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:13:14,611 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2022-07-23 14:13:14,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-07-23 14:13:14,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-07-23 14:13:14,641 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:13:14,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:14,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:13:14,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:14,682 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:13:14,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:14,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:13:14,698 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 [2022-07-23 14:13:14,698 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:13:14,713 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 26 transitions. Complement of second has 5 states. [2022-07-23 14:13:14,713 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 [2022-07-23 14:13:14,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:13:14,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2022-07-23 14:13:14,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 2 letters. [2022-07-23 14:13:14,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:14,716 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:13:14,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:14,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:13:14,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:14,753 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:13:14,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:14,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:13:14,764 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:13:14,764 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:13:14,779 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 26 transitions. Complement of second has 5 states. [2022-07-23 14:13:14,779 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 [2022-07-23 14:13:14,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:13:14,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2022-07-23 14:13:14,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 2 letters. [2022-07-23 14:13:14,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:14,782 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:13:14,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:14,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:13:14,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:14,828 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:13:14,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:14,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:13:14,845 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 2 loop predicates [2022-07-23 14:13:14,846 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:13:14,859 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 30 transitions. Complement of second has 4 states. [2022-07-23 14:13:14,859 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 [2022-07-23 14:13:14,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:13:14,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2022-07-23 14:13:14,864 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 12 letters. Loop has 2 letters. [2022-07-23 14:13:14,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:14,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 14 letters. Loop has 2 letters. [2022-07-23 14:13:14,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:14,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 12 letters. Loop has 4 letters. [2022-07-23 14:13:14,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:14,866 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2022-07-23 14:13:14,869 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-23 14:13:14,869 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2022-07-23 14:13:14,869 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-23 14:13:14,869 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-23 14:13:14,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-23 14:13:14,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 14:13:14,870 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 14:13:14,870 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 14:13:14,870 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 14:13:14,870 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-23 14:13:14,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-23 14:13:14,870 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-23 14:13:14,870 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-23 14:13:14,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 02:13:14 BoogieIcfgContainer [2022-07-23 14:13:14,885 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 14:13:14,885 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 14:13:14,885 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 14:13:14,885 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 14:13:14,886 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:13:10" (3/4) ... [2022-07-23 14:13:14,888 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-23 14:13:14,888 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 14:13:14,889 INFO L158 Benchmark]: Toolchain (without parser) took 4587.00ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 72.0MB in the beginning and 64.5MB in the end (delta: 7.5MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2022-07-23 14:13:14,889 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 77.6MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:13:14,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.57ms. Allocated memory is still 104.9MB. Free memory was 71.8MB in the beginning and 81.3MB in the end (delta: -9.5MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2022-07-23 14:13:14,892 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.22ms. Allocated memory is still 104.9MB. Free memory was 81.3MB in the beginning and 79.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 14:13:14,893 INFO L158 Benchmark]: Boogie Preprocessor took 14.78ms. Allocated memory is still 104.9MB. Free memory was 79.8MB in the beginning and 79.2MB in the end (delta: 543.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:13:14,894 INFO L158 Benchmark]: RCFGBuilder took 207.13ms. Allocated memory is still 104.9MB. Free memory was 79.2MB in the beginning and 70.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 14:13:14,894 INFO L158 Benchmark]: BuchiAutomizer took 4074.12ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 69.8MB in the beginning and 65.6MB in the end (delta: 4.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-07-23 14:13:14,894 INFO L158 Benchmark]: Witness Printer took 3.05ms. Allocated memory is still 125.8MB. Free memory was 65.6MB in the beginning and 64.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 14:13:14,896 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 77.6MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.57ms. Allocated memory is still 104.9MB. Free memory was 71.8MB in the beginning and 81.3MB in the end (delta: -9.5MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.22ms. Allocated memory is still 104.9MB. Free memory was 81.3MB in the beginning and 79.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.78ms. Allocated memory is still 104.9MB. Free memory was 79.8MB in the beginning and 79.2MB in the end (delta: 543.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 207.13ms. Allocated memory is still 104.9MB. Free memory was 79.2MB in the beginning and 70.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4074.12ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 69.8MB in the beginning and 65.6MB in the end (delta: 4.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.05ms. Allocated memory is still 125.8MB. Free memory was 65.6MB in the beginning and 64.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 * y + 1 and consists of 5 locations. One deterministic module has 2-nested ranking function (if 2 * z > 0 then 1 else 0), (if 2 * z > 0 then 2 * z else 2147483647 + 2 * tx + 2 * z) and consists of 4 locations. One deterministic module has affine ranking function 2 * x + -2 * y + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * x + -2 * y + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -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, 73 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 66 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax159 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq142 hnf94 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 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! [2022-07-23 14:13:14,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-07-23 14:13:15,136 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