./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/PastaB15.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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-restricted-15/PastaB15.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 3ccb58682df62cf013193e768e6367e3efc261e2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 01:30:40,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:30:40,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:30:40,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:30:40,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:30:40,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:30:40,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:30:40,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:30:40,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:30:40,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:30:40,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:30:40,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:30:40,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:30:40,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:30:40,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:30:40,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:30:40,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:30:40,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:30:40,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:30:40,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:30:40,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:30:40,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:30:40,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:30:40,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:30:40,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:30:40,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:30:40,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:30:40,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:30:40,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:30:40,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:30:40,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:30:40,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:30:40,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:30:40,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:30:40,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:30:40,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:30:40,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:30:40,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:30:40,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:30:40,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:30:40,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:30:40,806 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:30:40,844 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:30:40,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:30:40,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:30:40,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:30:40,848 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:30:40,848 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:30:40,849 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:30:40,849 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:30:40,849 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:30:40,849 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:30:40,850 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:30:40,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:30:40,850 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:30:40,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:30:40,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:30:40,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:30:40,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:30:40,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:30:40,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:30:40,853 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:30:40,853 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:30:40,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:30:40,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:30:40,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:30:40,854 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:30:40,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:30:40,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:30:40,855 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:30:40,855 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:30:40,856 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:30:40,856 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 -> 3ccb58682df62cf013193e768e6367e3efc261e2 [2020-07-29 01:30:41,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:30:41,200 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:30:41,204 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:30:41,208 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:30:41,209 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:30:41,209 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/PastaB15.c [2020-07-29 01:30:41,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0e6ba5f5/06718474a3064d7a824fd89f8e29525c/FLAG90a8477e1 [2020-07-29 01:30:41,714 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:30:41,714 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/PastaB15.c [2020-07-29 01:30:41,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0e6ba5f5/06718474a3064d7a824fd89f8e29525c/FLAG90a8477e1 [2020-07-29 01:30:42,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0e6ba5f5/06718474a3064d7a824fd89f8e29525c [2020-07-29 01:30:42,103 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:30:42,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:30:42,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:30:42,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:30:42,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:30:42,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:30:42" (1/1) ... [2020-07-29 01:30:42,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17e2c6c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:42, skipping insertion in model container [2020-07-29 01:30:42,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:30:42" (1/1) ... [2020-07-29 01:30:42,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:30:42,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:30:42,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:30:42,293 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:30:42,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:30:42,322 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:30:42,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:42 WrapperNode [2020-07-29 01:30:42,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:30:42,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:30:42,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:30:42,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:30:42,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:42" (1/1) ... [2020-07-29 01:30:42,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:42" (1/1) ... [2020-07-29 01:30:42,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:30:42,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:30:42,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:30:42,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:30:42,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:42" (1/1) ... [2020-07-29 01:30:42,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:42" (1/1) ... [2020-07-29 01:30:42,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:42" (1/1) ... [2020-07-29 01:30:42,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:42" (1/1) ... [2020-07-29 01:30:42,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:42" (1/1) ... [2020-07-29 01:30:42,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:42" (1/1) ... [2020-07-29 01:30:42,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:42" (1/1) ... [2020-07-29 01:30:42,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:30:42,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:30:42,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:30:42,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:30:42,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:42" (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 [2020-07-29 01:30:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:30:42,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:30:42,714 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:30:42,715 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-29 01:30:42,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:30:42 BoogieIcfgContainer [2020-07-29 01:30:42,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:30:42,720 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:30:42,720 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:30:42,738 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:30:42,742 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:30:42,742 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:30:42" (1/3) ... [2020-07-29 01:30:42,747 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7e73a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:30:42, skipping insertion in model container [2020-07-29 01:30:42,747 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:30:42,747 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:42" (2/3) ... [2020-07-29 01:30:42,748 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7e73a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:30:42, skipping insertion in model container [2020-07-29 01:30:42,748 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:30:42,748 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:30:42" (3/3) ... [2020-07-29 01:30:42,753 INFO L371 chiAutomizerObserver]: Analyzing ICFG PastaB15.c [2020-07-29 01:30:42,832 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:30:42,832 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:30:42,832 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:30:42,833 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:30:42,833 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:30:42,833 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:30:42,833 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:30:42,833 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:30:42,844 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-29 01:30:42,865 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:30:42,865 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:42,865 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:42,870 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:30:42,870 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:30:42,870 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:30:42,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-29 01:30:42,872 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:30:42,873 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:42,873 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:42,873 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:30:42,873 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:30:42,879 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 4#L14-3true [2020-07-29 01:30:42,879 INFO L796 eck$LassoCheckResult]: Loop: 4#L14-3true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 6#L14-2true assume !(main_~y~0 > main_~z~0); 4#L14-3true [2020-07-29 01:30:42,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:42,884 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-07-29 01:30:42,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:42,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669205339] [2020-07-29 01:30:42,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:42,952 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:42,955 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:42,968 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:42,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:42,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2020-07-29 01:30:42,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:42,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698442102] [2020-07-29 01:30:42,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:43,057 INFO L280 TraceCheckUtils]: 0: Hoare triple {13#true} assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); {15#(<= (+ ULTIMATE.start_main_~z~0 1) ULTIMATE.start_main_~y~0)} is VALID [2020-07-29 01:30:43,059 INFO L280 TraceCheckUtils]: 1: Hoare triple {15#(<= (+ ULTIMATE.start_main_~z~0 1) ULTIMATE.start_main_~y~0)} assume !(main_~y~0 > main_~z~0); {14#false} is VALID [2020-07-29 01:30:43,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:30:43,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698442102] [2020-07-29 01:30:43,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:30:43,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-29 01:30:43,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989322671] [2020-07-29 01:30:43,068 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 01:30:43,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:30:43,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 01:30:43,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:30:43,082 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2020-07-29 01:30:43,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:30:43,127 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2020-07-29 01:30:43,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 01:30:43,128 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:30:43,134 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 2 edges. 2 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:30:43,136 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2020-07-29 01:30:43,138 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:30:43,141 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 5 transitions. [2020-07-29 01:30:43,142 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-29 01:30:43,142 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-29 01:30:43,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2020-07-29 01:30:43,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:30:43,143 INFO L688 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-07-29 01:30:43,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2020-07-29 01:30:43,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2020-07-29 01:30:43,165 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:30:43,166 INFO L82 GeneralOperation]: Start isEquivalent. First operand 4 states and 5 transitions. Second operand 4 states. [2020-07-29 01:30:43,166 INFO L74 IsIncluded]: Start isIncluded. First operand 4 states and 5 transitions. Second operand 4 states. [2020-07-29 01:30:43,168 INFO L87 Difference]: Start difference. First operand 4 states and 5 transitions. Second operand 4 states. [2020-07-29 01:30:43,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:30:43,169 INFO L93 Difference]: Finished difference Result 4 states and 5 transitions. [2020-07-29 01:30:43,169 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 5 transitions. [2020-07-29 01:30:43,170 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:30:43,170 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:30:43,170 INFO L74 IsIncluded]: Start isIncluded. First operand 4 states. Second operand 4 states and 5 transitions. [2020-07-29 01:30:43,171 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 4 states and 5 transitions. [2020-07-29 01:30:43,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:30:43,172 INFO L93 Difference]: Finished difference Result 4 states and 5 transitions. [2020-07-29 01:30:43,172 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 5 transitions. [2020-07-29 01:30:43,172 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:30:43,172 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:30:43,172 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:30:43,172 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:30:43,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-29 01:30:43,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2020-07-29 01:30:43,175 INFO L711 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-07-29 01:30:43,175 INFO L591 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-07-29 01:30:43,175 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 01:30:43,175 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2020-07-29 01:30:43,175 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:30:43,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:43,176 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:43,176 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:30:43,176 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-29 01:30:43,176 INFO L794 eck$LassoCheckResult]: Stem: 24#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~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; 25#L14-3 [2020-07-29 01:30:43,177 INFO L796 eck$LassoCheckResult]: Loop: 25#L14-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 26#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 27#L14-2 assume !(main_~y~0 > main_~z~0); 25#L14-3 [2020-07-29 01:30:43,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:43,177 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2020-07-29 01:30:43,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:43,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901582054] [2020-07-29 01:30:43,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:43,182 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:43,185 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:43,186 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:43,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:43,187 INFO L82 PathProgramCache]: Analyzing trace with hash 40007, now seen corresponding path program 1 times [2020-07-29 01:30:43,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:43,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601245053] [2020-07-29 01:30:43,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:43,196 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:43,202 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:43,204 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:43,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:43,205 INFO L82 PathProgramCache]: Analyzing trace with hash 963528, now seen corresponding path program 1 times [2020-07-29 01:30:43,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:43,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210991574] [2020-07-29 01:30:43,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:43,214 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:43,221 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:43,230 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:43,326 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:30:43,327 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:30:43,327 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:30:43,327 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:30:43,328 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:30:43,328 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:43,328 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:30:43,328 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:30:43,328 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB15.c_Iteration2_Loop [2020-07-29 01:30:43,329 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:30:43,330 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:30:43,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:43,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:43,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:43,603 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:30:43,604 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) [2020-07-29 01:30:43,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:43,610 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 [2020-07-29 01:30:43,621 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:30:43,621 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) [2020-07-29 01:30:43,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:43,658 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 [2020-07-29 01:30:43,664 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:30:43,664 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) [2020-07-29 01:30:43,702 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:43,702 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:43,744 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:30:43,744 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:44,121 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 01:30:44,123 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:30:44,123 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:30:44,123 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:30:44,123 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:30:44,124 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:30:44,124 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:44,124 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:30:44,124 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:30:44,124 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB15.c_Iteration2_Loop [2020-07-29 01:30:44,124 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:30:44,125 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:30:44,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:44,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:44,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:44,324 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:30:44,330 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) [2020-07-29 01:30:44,337 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 [2020-07-29 01:30:44,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:44,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:44,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:44,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:44,348 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:30:44,348 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:44,356 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) [2020-07-29 01:30:44,402 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 [2020-07-29 01:30:44,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:44,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:44,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:44,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:44,411 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:30:44,412 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:44,417 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) [2020-07-29 01:30:44,453 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 [2020-07-29 01:30:44,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:44,455 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:30:44,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:44,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:44,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:44,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:30:44,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:44,463 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:30:44,488 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-29 01:30:44,489 INFO L444 ModelExtractionUtils]: 1 out of 5 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:44,506 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:30:44,507 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 01:30:44,507 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:30:44,508 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:44,551 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 01:30:44,557 INFO L393 LassoCheck]: Loop: "assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0);" "assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1;" "assume !(main_~y~0 > main_~z~0);" [2020-07-29 01:30:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:44,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:44,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:30:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:44,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:44,629 INFO L280 TraceCheckUtils]: 0: Hoare triple {45#unseeded} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~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; {45#unseeded} is VALID [2020-07-29 01:30:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:44,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 01:30:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:44,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:44,796 INFO L280 TraceCheckUtils]: 0: Hoare triple {48#(>= oldRank0 (+ ULTIMATE.start_main_~x~0 (* (- 1) ULTIMATE.start_main_~z~0)))} assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); {63#(and (<= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~z~0 oldRank0)) (< ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-29 01:30:44,798 INFO L280 TraceCheckUtils]: 1: Hoare triple {63#(and (<= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~z~0 oldRank0)) (< ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0))} assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; {67#(and (<= 1 oldRank0) (<= (+ ULTIMATE.start_main_~x~0 1) (+ ULTIMATE.start_main_~z~0 oldRank0)))} is VALID [2020-07-29 01:30:44,799 INFO L280 TraceCheckUtils]: 2: Hoare triple {67#(and (<= 1 oldRank0) (<= (+ ULTIMATE.start_main_~x~0 1) (+ ULTIMATE.start_main_~z~0 oldRank0)))} assume !(main_~y~0 > main_~z~0); {58#(or (and (> oldRank0 (+ ULTIMATE.start_main_~x~0 (* (- 1) ULTIMATE.start_main_~z~0))) (>= oldRank0 0)) unseeded)} is VALID [2020-07-29 01:30:44,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:30:44,801 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-29 01:30:44,809 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:30:44,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:44,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,814 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 [2020-07-29 01:30:44,815 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 4 states. [2020-07-29 01:30:44,879 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 12 states and 17 transitions. Complement of second has 6 states. [2020-07-29 01:30:44,880 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 [2020-07-29 01:30:44,880 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:44,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. cyclomatic complexity: 2 [2020-07-29 01:30:44,880 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:44,881 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:44,881 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-29 01:30:44,883 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:30:44,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:44,884 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:44,884 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2020-07-29 01:30:44,885 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:44,885 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:44,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:44,887 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 4 states and 5 transitions. cyclomatic complexity: 2 [2020-07-29 01:30:44,888 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2020-07-29 01:30:44,888 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 4 states. [2020-07-29 01:30:44,890 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:30:44,890 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:44,890 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 12 states and 17 transitions. cyclomatic complexity: 7 [2020-07-29 01:30:44,890 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:44,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:44,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:44,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:44,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:30:44,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:30:44,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:30:44,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:44,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,895 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:44,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,895 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:44,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 12 letters. Loop has 12 letters. [2020-07-29 01:30:44,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 12 letters. Loop has 12 letters. [2020-07-29 01:30:44,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 12 letters. Loop has 12 letters. [2020-07-29 01:30:44,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:30:44,898 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,898 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:30:44,898 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,898 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:30:44,899 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,899 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:30:44,899 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,899 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:30:44,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:30:44,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:44,901 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,901 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:44,901 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,902 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:44,902 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,902 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 2 letters. Loop has 3 letters. [2020-07-29 01:30:44,903 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,903 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 2 letters. Loop has 3 letters. [2020-07-29 01:30:44,903 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,903 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 2 letters. Loop has 3 letters. [2020-07-29 01:30:44,904 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,904 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:44,904 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,905 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:44,905 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,905 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:44,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:30:44,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:30:44,907 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,907 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:30:44,907 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,907 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:44,908 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:44,908 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:44,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,909 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:44,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-29 01:30:44,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2020-07-29 01:30:44,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:44,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2020-07-29 01:30:44,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 6 letters. [2020-07-29 01:30:44,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:44,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. cyclomatic complexity: 7 [2020-07-29 01:30:44,915 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:44,916 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 11 transitions. [2020-07-29 01:30:44,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-29 01:30:44,917 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-29 01:30:44,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2020-07-29 01:30:44,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-29 01:30:44,917 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-07-29 01:30:44,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2020-07-29 01:30:44,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-07-29 01:30:44,919 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:30:44,919 INFO L82 GeneralOperation]: Start isEquivalent. First operand 8 states and 11 transitions. Second operand 7 states. [2020-07-29 01:30:44,919 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states and 11 transitions. Second operand 7 states. [2020-07-29 01:30:44,919 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand 7 states. [2020-07-29 01:30:44,920 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 01:30:44,923 INFO L93 Difference]: Finished difference Result 8 states and 11 transitions. [2020-07-29 01:30:44,923 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 11 transitions. [2020-07-29 01:30:44,923 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:30:44,924 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:30:44,924 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states. Second operand 8 states and 11 transitions. [2020-07-29 01:30:44,924 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 8 states and 11 transitions. [2020-07-29 01:30:44,925 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 01:30:44,926 INFO L93 Difference]: Finished difference Result 9 states and 13 transitions. [2020-07-29 01:30:44,927 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 13 transitions. [2020-07-29 01:30:44,927 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:30:44,927 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:30:44,928 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:30:44,928 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:30:44,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-29 01:30:44,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-07-29 01:30:44,929 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-29 01:30:44,929 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-29 01:30:44,930 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-29 01:30:44,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-07-29 01:30:44,930 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:44,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:44,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:44,931 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2020-07-29 01:30:44,931 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:30:44,932 INFO L794 eck$LassoCheckResult]: Stem: 92#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~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; 93#L14-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 94#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 97#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 96#L14-2 [2020-07-29 01:30:44,932 INFO L796 eck$LassoCheckResult]: Loop: 96#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 96#L14-2 [2020-07-29 01:30:44,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:44,933 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 1 times [2020-07-29 01:30:44,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:44,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050965638] [2020-07-29 01:30:44,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:44,944 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:44,954 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:44,956 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:44,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:44,957 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-07-29 01:30:44,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:44,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210134301] [2020-07-29 01:30:44,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:44,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:44,963 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:44,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:44,966 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:44,967 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:44,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:44,968 INFO L82 PathProgramCache]: Analyzing trace with hash 29869449, now seen corresponding path program 2 times [2020-07-29 01:30:44,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:44,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560853093] [2020-07-29 01:30:44,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:44,989 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:45,011 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:45,016 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:45,041 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:30:45,042 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:30:45,042 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:30:45,042 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:30:45,042 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:30:45,042 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:45,042 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:30:45,043 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:30:45,043 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB15.c_Iteration3_Loop [2020-07-29 01:30:45,043 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:30:45,043 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:30:45,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:45,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:45,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:45,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:45,222 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:30:45,222 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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:45,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:45,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:30:45,240 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:30:45,241 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 [2020-07-29 01:30:45,276 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:45,276 INFO L160 nArgumentSynthesizer]: Using integer mode. 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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:45,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:30:45,316 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:30:45,353 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:30:45,353 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=2}, {ULTIMATE.start_main_~x~0=-3}] Lambdas: [6, 1, 1] Nus: [0, 0] 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) [2020-07-29 01:30:45,405 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:45,405 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 [2020-07-29 01:30:45,411 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:30:45,411 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:45,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:45,454 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 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) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:45,501 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:30:45,501 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:30:45,705 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 01:30:45,707 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:30:45,707 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:30:45,707 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:30:45,707 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:30:45,708 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:30:45,708 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:45,708 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:30:45,708 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:30:45,708 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB15.c_Iteration3_Loop [2020-07-29 01:30:45,708 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:30:45,708 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:30:45,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:45,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:45,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:45,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:45,872 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:30:45,873 INFO L489 LassoAnalysis]: Using template 'affine'. 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) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:45,885 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 [2020-07-29 01:30:45,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:45,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:45,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:45,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:45,894 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:30:45,896 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:30:45,902 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) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:45,940 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 [2020-07-29 01:30:45,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:45,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:30:45,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:45,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:45,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:45,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:30:45,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:30:45,947 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) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:45,990 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 [2020-07-29 01:30:45,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:45,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:45,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:45,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:45,998 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:30:45,998 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:30:46,031 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:46,077 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 [2020-07-29 01:30:46,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:46,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:30:46,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:46,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:46,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:46,081 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:30:46,081 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:46,086 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:30:46,111 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-29 01:30:46,112 INFO L444 ModelExtractionUtils]: 0 out of 4 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 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:46,147 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:30:46,148 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 01:30:46,148 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:30:46,148 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2020-07-29 01:30:46,182 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 01:30:46,185 INFO L393 LassoCheck]: Loop: "assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1;" [2020-07-29 01:30:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:46,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:46,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:30:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:46,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:46,221 INFO L280 TraceCheckUtils]: 0: Hoare triple {152#unseeded} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~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; {152#unseeded} is VALID [2020-07-29 01:30:46,221 INFO L280 TraceCheckUtils]: 1: Hoare triple {152#unseeded} assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); {152#unseeded} is VALID [2020-07-29 01:30:46,222 INFO L280 TraceCheckUtils]: 2: Hoare triple {152#unseeded} assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; {152#unseeded} is VALID [2020-07-29 01:30:46,223 INFO L280 TraceCheckUtils]: 3: Hoare triple {152#unseeded} assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; {152#unseeded} is VALID [2020-07-29 01:30:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:46,227 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 01:30:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:46,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:46,238 INFO L280 TraceCheckUtils]: 0: Hoare triple {155#(>= oldRank0 (+ ULTIMATE.start_main_~y~0 (* (- 1) ULTIMATE.start_main_~z~0)))} assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; {165#(or unseeded (and (> oldRank0 (+ ULTIMATE.start_main_~y~0 (* (- 1) ULTIMATE.start_main_~z~0))) (>= oldRank0 0)))} is VALID [2020-07-29 01:30:46,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:30:46,238 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-29 01:30:46,246 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:30:46,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:46,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,247 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-29 01:30:46,247 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-07-29 01:30:46,276 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 4 states. [2020-07-29 01:30:46,277 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 [2020-07-29 01:30:46,277 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:46,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. cyclomatic complexity: 5 [2020-07-29 01:30:46,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:46,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:46,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-29 01:30:46,280 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:30:46,280 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:46,280 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:46,280 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2020-07-29 01:30:46,281 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:30:46,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:30:46,282 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 7 states and 10 transitions. cyclomatic complexity: 5 [2020-07-29 01:30:46,283 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:46,283 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 2 states. [2020-07-29 01:30:46,284 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:30:46,284 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:46,284 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 11 states and 15 transitions. cyclomatic complexity: 6 [2020-07-29 01:30:46,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. cyclomatic complexity: 6 [2020-07-29 01:30:46,287 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:30:46,287 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2020-07-29 01:30:46,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. cyclomatic complexity: 5 Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:46,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:46,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 6 Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:46,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. cyclomatic complexity: 5 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:46,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:46,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 6 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:46,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. cyclomatic complexity: 5 Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:30:46,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:30:46,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 6 Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:30:46,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. cyclomatic complexity: 5 Stem has 7 letters. Loop has 7 letters. [2020-07-29 01:30:46,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 7 letters. Loop has 7 letters. [2020-07-29 01:30:46,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 6 Stem has 7 letters. Loop has 7 letters. [2020-07-29 01:30:46,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. cyclomatic complexity: 5 Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:46,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:46,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 6 Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:46,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. cyclomatic complexity: 5 Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:46,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:46,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 6 Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:46,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. cyclomatic complexity: 5 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:46,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:46,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 6 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:46,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,293 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:46,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-29 01:30:46,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-29 01:30:46,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:46,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:46,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2020-07-29 01:30:46,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:46,297 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. cyclomatic complexity: 6 [2020-07-29 01:30:46,299 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:30:46,300 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-07-29 01:30:46,300 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 01:30:46,301 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 01:30:46,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 01:30:46,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:30:46,301 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:30:46,301 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:30:46,301 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:30:46,302 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-29 01:30:46,302 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 01:30:46,302 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:30:46,302 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:30:46,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:30:46 BoogieIcfgContainer [2020-07-29 01:30:46,309 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:30:46,310 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:30:46,310 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:30:46,310 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:30:46,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:30:42" (3/4) ... [2020-07-29 01:30:46,316 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 01:30:46,317 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:30:46,321 INFO L168 Benchmark]: Toolchain (without parser) took 4215.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.4 MB). Free memory was 961.6 MB in the beginning and 1.2 GB in the end (delta: -192.8 MB). Peak memory consumption was 10.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:46,322 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:30:46,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.49 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 949.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:46,327 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.39 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:30:46,328 INFO L168 Benchmark]: Boogie Preprocessor took 71.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -174.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:46,329 INFO L168 Benchmark]: RCFGBuilder took 296.30 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:46,330 INFO L168 Benchmark]: BuchiAutomizer took 3589.29 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 75.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -56.8 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:46,334 INFO L168 Benchmark]: Witness Printer took 7.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:46,345 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 216.49 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 949.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.39 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 71.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -174.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 296.30 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3589.29 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 75.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -56.8 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * Witness Printer took 7.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * z and consists of 4 locations. One deterministic module has affine ranking function y + -1 * z and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 11 SDtfs, 9 SDslu, 3 SDs, 0 SdLazy, 18 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax167 hnf98 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp92 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...