./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 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 b11f086006b59545dfe302b4d0afe0208312f571 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:40:46,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:40:46,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:40:46,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:40:46,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:40:46,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:40:46,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:40:46,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:40:46,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:40:46,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:40:46,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:40:46,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:40:46,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:40:46,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:40:46,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:40:46,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:40:46,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:40:46,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:40:46,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:40:46,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:40:46,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:40:46,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:40:46,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:40:46,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:40:46,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:40:46,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:40:46,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:40:46,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:40:46,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:40:46,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:40:46,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:40:46,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:40:46,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:40:46,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:40:46,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:40:46,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:40:46,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:40:46,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:40:46,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:40:46,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:40:46,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:40:46,905 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-19 18:40:46,936 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:40:46,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:40:46,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:40:46,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:40:46,938 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:40:46,938 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:40:46,938 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:40:46,939 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:40:46,939 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:40:46,940 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:40:46,940 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:40:46,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:40:46,940 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:40:46,941 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:40:46,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:40:46,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:40:46,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:40:46,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:40:46,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:40:46,943 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:40:46,943 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:40:46,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:40:46,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:40:46,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:40:46,945 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:40:46,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:40:46,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:40:46,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:40:46,946 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:40:46,948 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:40:46,948 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> b11f086006b59545dfe302b4d0afe0208312f571 [2020-10-19 18:40:47,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:40:47,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:40:47,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:40:47,287 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:40:47,287 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:40:47,288 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/aaron3-1.c [2020-10-19 18:40:47,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/368b3c92f/051d941069c54d318dc317a452835245/FLAGbd284d4ac [2020-10-19 18:40:47,826 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:40:47,826 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/aaron3-1.c [2020-10-19 18:40:47,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/368b3c92f/051d941069c54d318dc317a452835245/FLAGbd284d4ac [2020-10-19 18:40:48,213 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/368b3c92f/051d941069c54d318dc317a452835245 [2020-10-19 18:40:48,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:40:48,223 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:40:48,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:40:48,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:40:48,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:40:48,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:40:48" (1/1) ... [2020-10-19 18:40:48,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11814404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:48, skipping insertion in model container [2020-10-19 18:40:48,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:40:48" (1/1) ... [2020-10-19 18:40:48,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:40:48,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:40:48,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:40:48,433 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:40:48,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:40:48,467 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:40:48,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:48 WrapperNode [2020-10-19 18:40:48,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:40:48,469 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:40:48,469 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:40:48,470 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:40:48,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:48" (1/1) ... [2020-10-19 18:40:48,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:48" (1/1) ... [2020-10-19 18:40:48,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:40:48,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:40:48,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:40:48,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:40:48,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:48" (1/1) ... [2020-10-19 18:40:48,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:48" (1/1) ... [2020-10-19 18:40:48,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:48" (1/1) ... [2020-10-19 18:40:48,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:48" (1/1) ... [2020-10-19 18:40:48,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:48" (1/1) ... [2020-10-19 18:40:48,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:48" (1/1) ... [2020-10-19 18:40:48,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:48" (1/1) ... [2020-10-19 18:40:48,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:40:48,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:40:48,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:40:48,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:40:48,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:40:48,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:40:48,837 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:40:48,837 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-19 18:40:48,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:40:48 BoogieIcfgContainer [2020-10-19 18:40:48,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:40:48,840 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:40:48,840 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:40:48,844 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:40:48,846 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:40:48,846 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:40:48" (1/3) ... [2020-10-19 18:40:48,847 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a6a3982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:40:48, skipping insertion in model container [2020-10-19 18:40:48,848 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:40:48,848 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:48" (2/3) ... [2020-10-19 18:40:48,848 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a6a3982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:40:48, skipping insertion in model container [2020-10-19 18:40:48,849 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:40:48,849 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:40:48" (3/3) ... [2020-10-19 18:40:48,851 INFO L373 chiAutomizerObserver]: Analyzing ICFG aaron3-1.c [2020-10-19 18:40:48,905 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:40:48,906 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:40:48,906 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:40:48,906 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:40:48,907 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:40:48,907 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:40:48,908 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:40:48,908 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:40:48,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-10-19 18:40:48,977 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:40:48,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:40:48,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:40:48,986 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-19 18:40:48,987 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:40:48,987 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:40:48,987 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-10-19 18:40:48,989 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:40:48,989 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:40:48,989 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:40:48,990 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-19 18:40:48,990 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:40:48,999 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 6#L22true assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 7#L23true assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 9#L24true assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 12#L25true assume !!(main_~y~0 <= 1073741823); 13#L27-2true [2020-10-19 18:40:49,000 INFO L796 eck$LassoCheckResult]: Loop: 13#L27-2true assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 5#L27true assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 13#L27-2true [2020-10-19 18:40:49,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:40:49,007 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 1 times [2020-10-19 18:40:49,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:40:49,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687881602] [2020-10-19 18:40:49,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:40:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:40:49,099 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:40:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:40:49,107 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:40:49,125 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:40:49,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:40:49,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 1 times [2020-10-19 18:40:49,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:40:49,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89417080] [2020-10-19 18:40:49,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:40:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:40:49,139 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:40:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:40:49,143 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:40:49,145 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:40:49,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:40:49,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221836, now seen corresponding path program 1 times [2020-10-19 18:40:49,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:40:49,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923682566] [2020-10-19 18:40:49,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:40:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:40:49,159 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:40:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:40:49,168 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:40:49,171 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:40:49,237 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:40:49,238 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:40:49,238 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:40:49,238 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:40:49,238 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:40:49,238 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:49,239 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:40:49,239 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:40:49,239 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration1_Loop [2020-10-19 18:40:49,239 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:40:49,239 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:40:49,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:49,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:49,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:49,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:49,381 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:40:49,382 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:40:49,396 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:40:49,397 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:49,407 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:40:49,407 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: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:40:49,461 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:40:49,462 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:49,468 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:40:49,469 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: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:49,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:40:49,503 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:49,536 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:40:49,537 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:40:49,822 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:40:49,825 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:40:49,825 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:40:49,825 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:40:49,826 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:40:49,826 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:40:49,826 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:49,826 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:40:49,826 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:40:49,826 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration1_Loop [2020-10-19 18:40:49,827 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:40:49,827 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:40:49,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:49,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:49,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:49,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:49,919 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:40:49,926 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:49,940 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:40:49,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:40:49,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:40:49,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:40:49,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:40:49,951 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:40:49,951 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:40:49,960 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:40:50,000 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:50,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:40:50,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:40:50,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:40:50,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:40:50,007 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:40:50,008 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:40:50,014 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:50,045 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:40:50,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:40:50,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:40:50,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:40:50,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:40:50,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:40:50,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:40:50,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:40:50,062 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:40:50,069 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 18:40:50,070 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:40:50,086 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:40:50,087 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 18:40:50,087 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:40:50,088 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:50,123 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 18:40:50,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:40:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:40:50,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:40:50,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:40:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:40:50,192 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:40:50,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:40:50,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:40:50,226 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 [2020-10-19 18:40:50,228 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2020-10-19 18:40:50,285 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 3 states. Result 31 states and 42 transitions. Complement of second has 8 states. [2020-10-19 18:40:50,286 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 [2020-10-19 18:40:50,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:40:50,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2020-10-19 18:40:50,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-19 18:40:50,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:40:50,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-19 18:40:50,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:40:50,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 4 letters. [2020-10-19 18:40:50,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:40:50,294 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 42 transitions. [2020-10-19 18:40:50,298 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:40:50,303 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 12 states and 15 transitions. [2020-10-19 18:40:50,304 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-10-19 18:40:50,304 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-10-19 18:40:50,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2020-10-19 18:40:50,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:40:50,305 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-10-19 18:40:50,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2020-10-19 18:40:50,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-19 18:40:50,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-19 18:40:50,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2020-10-19 18:40:50,334 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-10-19 18:40:50,334 INFO L594 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-10-19 18:40:50,334 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 18:40:50,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2020-10-19 18:40:50,335 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:40:50,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:40:50,335 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:40:50,336 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:40:50,336 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:40:50,336 INFO L794 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 95#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 99#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 100#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 101#L25 assume !!(main_~y~0 <= 1073741823); 103#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 96#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 92#L31 [2020-10-19 18:40:50,337 INFO L796 eck$LassoCheckResult]: Loop: 92#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 93#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 102#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 92#L31 [2020-10-19 18:40:50,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:40:50,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221843, now seen corresponding path program 1 times [2020-10-19 18:40:50,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:40:50,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601882790] [2020-10-19 18:40:50,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:40:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:40:50,348 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:40:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:40:50,356 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:40:50,359 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:40:50,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:40:50,359 INFO L82 PathProgramCache]: Analyzing trace with hash 67272, now seen corresponding path program 1 times [2020-10-19 18:40:50,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:40:50,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922655504] [2020-10-19 18:40:50,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:40:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:40:50,367 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:40:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:40:50,372 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:40:50,373 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:40:50,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:40:50,374 INFO L82 PathProgramCache]: Analyzing trace with hash -312117156, now seen corresponding path program 1 times [2020-10-19 18:40:50,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:40:50,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896558596] [2020-10-19 18:40:50,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:40:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:40:50,389 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:40:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:40:50,401 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:40:50,405 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:40:50,459 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:40:50,459 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:40:50,459 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:40:50,459 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:40:50,459 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:40:50,460 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:50,460 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:40:50,460 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:40:50,461 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration2_Loop [2020-10-19 18:40:50,461 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:40:50,461 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:40:50,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:50,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:50,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:50,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:50,587 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:40:50,588 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:40:50,592 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:40:50,592 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:50,597 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:40:50,598 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: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:50,650 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:40:50,650 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:40:50,657 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:40:50,657 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=7} Honda state: {ULTIMATE.start_main_#t~nondet4=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:40:50,703 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:40:50,704 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:50,708 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:40:50,708 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: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:40:50,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:40:50,754 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:40:50,792 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:40:50,792 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:50,845 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:40:50,847 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:40:50,847 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:40:50,847 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:40:50,848 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:40:50,848 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:40:50,848 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:50,848 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:40:50,848 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:40:50,848 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration2_Loop [2020-10-19 18:40:50,848 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:40:50,848 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:40:50,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:50,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:50,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:50,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:50,991 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:40:50,991 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:40:50,998 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:40:51,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:40:51,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:40:51,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:40:51,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:40:51,007 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:40:51,009 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:51,014 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:40:51,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:40:51,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:40:51,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:40:51,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:40:51,072 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 18:40:51,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:40:51,073 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:40:51,073 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:51,076 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:40:51,134 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:40:51,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:40:51,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:40:51,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:40:51,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:40:51,147 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:40:51,148 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:51,159 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:40:51,205 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:40:51,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:40:51,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:40:51,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:40:51,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:40:51,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:40:51,211 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:40:51,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:51,216 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:40:51,255 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:40:51,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:40:51,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:40:51,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:40:51,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:40:51,272 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:40:51,279 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-10-19 18:40:51,279 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:51,286 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:40:51,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:40:51,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:40:51,341 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:40:51,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:40:51,341 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 18:40:51,342 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:40:51,343 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:40:51,344 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:51,350 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:51,402 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:40:51,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:40:51,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:40:51,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:40:51,404 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:40:51,408 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-10-19 18:40:51,409 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-10-19 18:40:51,415 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:51,446 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:40:51,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:40:51,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:40:51,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:40:51,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:40:51,450 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:40:51,458 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-19 18:40:51,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:40:51,465 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:40:51,483 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-19 18:40:51,483 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:51,487 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:40:51,488 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 18:40:51,488 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:40:51,488 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*ULTIMATE.start_main_~z~0 f1 = 2*ULTIMATE.start_main_~tx~0 + 2*ULTIMATE.start_main_~z~0 + 2147483647 Supporting invariants [] [2020-10-19 18:40:51,520 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 18:41:04,125 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* 2 c_ULTIMATE.start_main_~z~0))) (let ((.cse0 (> .cse1 0))) (let ((.cse2 (ite .cse0 1 0))) (or (and (> c_oldRank1 (ite .cse0 .cse1 (+ (* 2 c_ULTIMATE.start_main_~tx~0) .cse1 2147483647))) (>= c_oldRank1 0) (>= c_oldRank0 .cse2)) (and (>= c_oldRank0 0) (> c_oldRank0 .cse2)) c_unseeded)))) is different from false [2020-10-19 18:41:16,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:41:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:41:16,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:41:16,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:41:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:41:16,667 WARN L261 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:41:16,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:41:16,793 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 18:41:16,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:41:16,872 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 [2020-10-19 18:41:16,872 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-10-19 18:41:17,070 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 30 [2020-10-19 18:41:17,085 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 17 states and 22 transitions. Complement of second has 6 states. [2020-10-19 18:41:17,086 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 [2020-10-19 18:41:17,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 18:41:17,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2020-10-19 18:41:17,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 3 letters. [2020-10-19 18:41:17,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:41:17,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-19 18:41:17,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:41:17,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 6 letters. [2020-10-19 18:41:17,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:41:17,090 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2020-10-19 18:41:17,091 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:41:17,092 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 22 transitions. [2020-10-19 18:41:17,092 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-10-19 18:41:17,093 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-10-19 18:41:17,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2020-10-19 18:41:17,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:41:17,093 INFO L691 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-10-19 18:41:17,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2020-10-19 18:41:17,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2020-10-19 18:41:17,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-19 18:41:17,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2020-10-19 18:41:17,096 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2020-10-19 18:41:17,096 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2020-10-19 18:41:17,096 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 18:41:17,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2020-10-19 18:41:17,097 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:41:17,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:41:17,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:41:17,097 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:41:17,098 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:41:17,098 INFO L794 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 184#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 188#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 189#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 190#L25 assume !!(main_~y~0 <= 1073741823); 192#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 193#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 179#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 181#L27-2 [2020-10-19 18:41:17,098 INFO L796 eck$LassoCheckResult]: Loop: 181#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 185#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 181#L27-2 [2020-10-19 18:41:17,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:41:17,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1295763161, now seen corresponding path program 2 times [2020-10-19 18:41:17,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:41:17,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024365444] [2020-10-19 18:41:17,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:41:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:41:17,107 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:41:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:41:17,115 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:41:17,117 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:41:17,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:41:17,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 2 times [2020-10-19 18:41:17,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:41:17,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639336423] [2020-10-19 18:41:17,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:41:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:41:17,125 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:41:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:41:17,128 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:41:17,129 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:41:17,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:41:17,130 INFO L82 PathProgramCache]: Analyzing trace with hash -312117149, now seen corresponding path program 1 times [2020-10-19 18:41:17,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:41:17,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242838770] [2020-10-19 18:41:17,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:41:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:41:17,141 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:41:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:41:17,151 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:41:17,154 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:41:17,182 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:41:17,182 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:41:17,183 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:41:17,183 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:41:17,183 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:41:17,183 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:17,183 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:41:17,183 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:41:17,184 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration3_Loop [2020-10-19 18:41:17,184 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:41:17,184 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:41:17,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:41:17,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:41:17,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:41:17,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:41:17,324 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:41:17,325 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:41:17,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:41:17,328 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:17,340 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:41:17,340 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:41:17,365 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:41:17,366 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:17,370 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:41:17,370 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:17,399 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:41:17,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:41:17,402 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:41:17,402 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:17,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:41:17,425 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:17,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:41:17,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:41:17,678 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:41:17,680 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:41:17,680 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:41:17,680 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:41:17,680 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:41:17,680 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:41:17,680 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:17,680 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:41:17,680 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:41:17,680 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration3_Loop [2020-10-19 18:41:17,681 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:41:17,681 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:41:17,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:41:17,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:41:17,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:41:17,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:41:17,760 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:41:17,760 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:17,764 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:41:17,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:41:17,765 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:41:17,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:41:17,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:41:17,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:41:17,766 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:41:17,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:41:17,768 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:41:17,792 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:17,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:41:17,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:41:17,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:41:17,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:41:17,798 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:41:17,798 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:41:17,802 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:41:17,825 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:17,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:41:17,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:41:17,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:41:17,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:41:17,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:41:17,828 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:41:17,829 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:41:17,831 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:41:17,833 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 18:41:17,834 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:17,838 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:41:17,838 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 18:41:17,838 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:41:17,839 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-10-19 18:41:17,859 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 18:41:17,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:41:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:41:17,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:41:17,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:41:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:41:17,897 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:41:17,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:41:17,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:41:17,915 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 [2020-10-19 18:41:17,915 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-10-19 18:41:17,940 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 22 states and 29 transitions. Complement of second has 5 states. [2020-10-19 18:41:17,941 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 [2020-10-19 18:41:17,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:41:17,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-10-19 18:41:17,941 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2020-10-19 18:41:17,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:41:17,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2020-10-19 18:41:17,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:41:17,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2020-10-19 18:41:17,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:41:17,942 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 29 transitions. [2020-10-19 18:41:17,944 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:41:17,945 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 23 transitions. [2020-10-19 18:41:17,946 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-10-19 18:41:17,946 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-10-19 18:41:17,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2020-10-19 18:41:17,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:41:17,947 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2020-10-19 18:41:17,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2020-10-19 18:41:17,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-19 18:41:17,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-19 18:41:17,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2020-10-19 18:41:17,949 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2020-10-19 18:41:17,949 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2020-10-19 18:41:17,949 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 18:41:17,949 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2020-10-19 18:41:17,950 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:41:17,950 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:41:17,950 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:41:17,951 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2020-10-19 18:41:17,951 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:41:17,951 INFO L794 eck$LassoCheckResult]: Stem: 272#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 273#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 276#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 277#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 278#L25 assume !!(main_~y~0 <= 1073741823); 280#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 281#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 267#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 268#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 282#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 269#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 271#L27-2 [2020-10-19 18:41:17,951 INFO L796 eck$LassoCheckResult]: Loop: 271#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 274#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 271#L27-2 [2020-10-19 18:41:17,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:41:17,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1085697206, now seen corresponding path program 3 times [2020-10-19 18:41:17,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:41:17,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608881017] [2020-10-19 18:41:17,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:41:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:41:17,962 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:41:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:41:17,971 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:41:17,977 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:41:17,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:41:17,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 3 times [2020-10-19 18:41:17,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:41:17,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913406620] [2020-10-19 18:41:17,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:41:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:41:17,985 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:41:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:41:17,990 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:41:17,991 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:41:17,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:41:17,991 INFO L82 PathProgramCache]: Analyzing trace with hash 322038932, now seen corresponding path program 2 times [2020-10-19 18:41:17,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:41:17,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222887837] [2020-10-19 18:41:17,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:41:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:41:18,015 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:41:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:41:18,038 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:41:18,043 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:41:18,063 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:41:18,063 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:41:18,063 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:41:18,063 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:41:18,064 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:41:18,064 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:18,064 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:41:18,064 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:41:18,064 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration4_Loop [2020-10-19 18:41:18,064 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:41:18,064 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:41:18,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:41:18,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:41:18,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:41:18,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:41:18,139 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:41:18,139 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:41:18,145 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:41:18,145 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:41:18,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:41:18,196 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:18,457 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:41:18,459 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:41:18,459 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:41:18,459 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:41:18,459 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:41:18,459 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:41:18,459 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:18,459 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:41:18,459 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:41:18,460 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration4_Loop [2020-10-19 18:41:18,460 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:41:18,460 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:41:18,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:41:18,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:41:18,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:41:18,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:41:18,531 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:41:18,532 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:18,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:41:18,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:41:18,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:41:18,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:41:18,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:41:18,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:41:18,538 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:41:18,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:41:18,540 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:41:18,543 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 18:41:18,543 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:18,546 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:41:18,547 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 18:41:18,547 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:41:18,547 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-10-19 18:41:18,569 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 18:41:18,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:41:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:41:18,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:41:18,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:41:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:41:18,615 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:41:18,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:41:18,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:41:18,630 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 [2020-10-19 18:41:18,630 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2020-10-19 18:41:18,656 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 20 states and 25 transitions. Complement of second has 5 states. [2020-10-19 18:41:18,656 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 [2020-10-19 18:41:18,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:41:18,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-10-19 18:41:18,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2020-10-19 18:41:18,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:41:18,657 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 18:41:18,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:41:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:41:18,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:41:18,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:41:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:41:18,696 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:41:18,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:41:18,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:41:18,710 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 [2020-10-19 18:41:18,710 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2020-10-19 18:41:18,728 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 20 states and 25 transitions. Complement of second has 5 states. [2020-10-19 18:41:18,732 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 [2020-10-19 18:41:18,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:41:18,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-10-19 18:41:18,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2020-10-19 18:41:18,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:41:18,733 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 18:41:18,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:41:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:41:18,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:41:18,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:41:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:41:18,768 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:41:18,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:41:18,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:41:18,780 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 [2020-10-19 18:41:18,780 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2020-10-19 18:41:18,797 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 23 states and 29 transitions. Complement of second has 4 states. [2020-10-19 18:41:18,798 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 [2020-10-19 18:41:18,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:41:18,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-10-19 18:41:18,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 2 letters. [2020-10-19 18:41:18,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:41:18,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 13 letters. Loop has 2 letters. [2020-10-19 18:41:18,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:41:18,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 4 letters. [2020-10-19 18:41:18,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:41:18,800 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 29 transitions. [2020-10-19 18:41:18,802 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:41:18,802 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2020-10-19 18:41:18,802 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 18:41:18,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 18:41:18,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 18:41:18,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:41:18,803 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:41:18,803 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:41:18,803 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:41:18,803 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-19 18:41:18,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:41:18,803 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:41:18,803 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 18:41:18,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:41:18 BoogieIcfgContainer [2020-10-19 18:41:18,810 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:41:18,810 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:41:18,810 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:41:18,811 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:41:18,811 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:40:48" (3/4) ... [2020-10-19 18:41:18,814 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:41:18,815 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:41:18,816 INFO L168 Benchmark]: Toolchain (without parser) took 30598.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.2 MB). Free memory was 958.6 MB in the beginning and 1.0 GB in the end (delta: -76.1 MB). Peak memory consumption was 122.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:41:18,817 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:41:18,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.02 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:41:18,818 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.65 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:41:18,819 INFO L168 Benchmark]: Boogie Preprocessor took 85.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -169.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:41:18,820 INFO L168 Benchmark]: RCFGBuilder took 249.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:41:18,821 INFO L168 Benchmark]: BuchiAutomizer took 29969.85 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 68.8 MB). Peak memory consumption was 139.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:41:18,821 INFO L168 Benchmark]: Witness Printer took 4.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:41:18,825 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 244.02 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.65 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 85.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -169.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 249.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 29969.85 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 68.8 MB). Peak memory consumption was 139.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * 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 2 * tx + 2 * z + 2147483647) and consists of 4 locations. One deterministic module has affine ranking function -2 * y + 2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * y + 2 * x + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 29.9s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.7s. Construction of modules took 0.0s. Büchi inclusion checks took 25.9s. 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 18 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 60 SDtfs, 60 SDslu, 8 SDs, 0 SdLazy, 39 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time 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: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...