./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.16.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.16.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer --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 59f77c8e05911b32b52175a230b989da0fe83a06 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:57:50,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:57:50,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:57:50,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:57:50,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:57:50,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:57:50,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:57:50,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:57:50,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:57:50,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:57:50,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:57:50,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:57:50,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:57:50,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:57:50,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:57:50,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:57:50,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:57:50,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:57:50,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:57:50,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:57:50,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:57:50,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:57:50,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:57:50,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:57:50,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:57:50,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:57:50,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:57:50,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:57:50,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:57:50,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:57:50,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:57:50,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:57:50,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:57:50,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:57:50,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:57:50,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:57:50,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:57:50,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:57:50,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:57:50,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:57:50,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:57:50,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 20:57:50,825 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:57:50,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:57:50,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:57:50,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:57:50,837 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:57:50,837 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 20:57:50,838 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 20:57:50,838 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 20:57:50,838 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 20:57:50,838 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 20:57:50,839 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 20:57:50,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:57:50,839 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 20:57:50,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:57:50,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:57:50,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 20:57:50,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 20:57:50,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 20:57:50,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:57:50,842 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 20:57:50,842 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:57:50,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 20:57:50,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:57:50,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:57:50,843 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 20:57:50,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:57:50,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:57:50,844 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 20:57:50,845 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 20:57:50,846 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer 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 -> 59f77c8e05911b32b52175a230b989da0fe83a06 [2019-11-15 20:57:50,876 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:57:50,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:57:50,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:57:50,896 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:57:50,898 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:57:50,899 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.16.c [2019-11-15 20:57:50,962 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer/data/c7e4d698a/8c389f5c9b5f4bd39cb402c229b9cb97/FLAG309a722a2 [2019-11-15 20:57:51,339 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:57:51,340 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/sv-benchmarks/c/termination-restricted-15/b.16.c [2019-11-15 20:57:51,345 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer/data/c7e4d698a/8c389f5c9b5f4bd39cb402c229b9cb97/FLAG309a722a2 [2019-11-15 20:57:51,772 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer/data/c7e4d698a/8c389f5c9b5f4bd39cb402c229b9cb97 [2019-11-15 20:57:51,774 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:57:51,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:57:51,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:57:51,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:57:51,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:57:51,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:57:51" (1/1) ... [2019-11-15 20:57:51,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eed659a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:51, skipping insertion in model container [2019-11-15 20:57:51,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:57:51" (1/1) ... [2019-11-15 20:57:51,788 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:57:51,807 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:57:52,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:57:52,072 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:57:52,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:57:52,099 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:57:52,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:52 WrapperNode [2019-11-15 20:57:52,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:57:52,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:57:52,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:57:52,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:57:52,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:52" (1/1) ... [2019-11-15 20:57:52,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:52" (1/1) ... [2019-11-15 20:57:52,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:57:52,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:57:52,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:57:52,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:57:52,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:52" (1/1) ... [2019-11-15 20:57:52,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:52" (1/1) ... [2019-11-15 20:57:52,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:52" (1/1) ... [2019-11-15 20:57:52,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:52" (1/1) ... [2019-11-15 20:57:52,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:52" (1/1) ... [2019-11-15 20:57:52,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:52" (1/1) ... [2019-11-15 20:57:52,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:52" (1/1) ... [2019-11-15 20:57:52,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:57:52,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:57:52,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:57:52,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:57:52,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer/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 [2019-11-15 20:57:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:57:52,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:57:52,330 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:57:52,330 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 20:57:52,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:57:52 BoogieIcfgContainer [2019-11-15 20:57:52,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:57:52,332 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 20:57:52,332 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 20:57:52,335 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 20:57:52,335 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:57:52,336 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 08:57:51" (1/3) ... [2019-11-15 20:57:52,337 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cacf064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:57:52, skipping insertion in model container [2019-11-15 20:57:52,337 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:57:52,341 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:52" (2/3) ... [2019-11-15 20:57:52,341 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cacf064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:57:52, skipping insertion in model container [2019-11-15 20:57:52,342 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:57:52,342 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:57:52" (3/3) ... [2019-11-15 20:57:52,343 INFO L371 chiAutomizerObserver]: Analyzing ICFG b.16.c [2019-11-15 20:57:52,390 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 20:57:52,390 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 20:57:52,390 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 20:57:52,390 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:57:52,390 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:57:52,390 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 20:57:52,390 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:57:52,391 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 20:57:52,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-15 20:57:52,421 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 20:57:52,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:57:52,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:57:52,428 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 20:57:52,428 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 20:57:52,428 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 20:57:52,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-15 20:57:52,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 20:57:52,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:57:52,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:57:52,430 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 20:57:52,430 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 20:57:52,437 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 9#L11-2true [2019-11-15 20:57:52,438 INFO L793 eck$LassoCheckResult]: Loop: 9#L11-2true assume !!(main_~x~0 > 0); 3#L12-2true assume !(main_~y~0 > 0); 10#L12-3true main_~x~0 := main_~x~0 - 1; 9#L11-2true [2019-11-15 20:57:52,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:52,443 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-15 20:57:52,451 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:52,451 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357807410] [2019-11-15 20:57:52,452 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:52,452 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:52,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:52,544 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:57:52,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:52,546 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2019-11-15 20:57:52,546 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:52,546 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260260057] [2019-11-15 20:57:52,546 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:52,546 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:52,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:52,558 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:57:52,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:52,560 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2019-11-15 20:57:52,560 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:52,561 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135417285] [2019-11-15 20:57:52,561 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:52,562 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:52,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:52,588 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:57:52,728 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 20:57:52,729 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 20:57:52,729 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 20:57:52,729 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 20:57:52,729 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 20:57:52,729 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:57:52,729 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 20:57:52,730 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 20:57:52,730 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.16.c_Iteration1_Loop [2019-11-15 20:57:52,730 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 20:57:52,730 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 20:57:52,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:57:52,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:57:52,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:57:52,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:57:52,844 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 20:57:52,845 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer/z3 Starting monitored process 2 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:57:52,858 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:57:52,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 20:57:52,866 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 20:57:52,866 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 /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer/z3 Starting monitored process 3 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:57:52,884 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:57:52,884 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 20:57:52,890 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 20:57:52,890 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 /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:57:52,908 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:57:52,908 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:57:52,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 20:57:52,922 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 20:57:52,930 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 20:57:52,933 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 20:57:52,933 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 20:57:52,933 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 20:57:52,934 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 20:57:52,934 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 20:57:52,934 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:57:52,934 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 20:57:52,934 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 20:57:52,934 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.16.c_Iteration1_Loop [2019-11-15 20:57:52,934 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 20:57:52,934 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 20:57:52,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:57:52,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:57:52,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:57:52,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:57:53,027 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 20:57:53,034 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 20:57:53,036 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 [2019-11-15 20:57:53,037 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:57:53,038 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 20:57:53,038 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 20:57:53,038 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:57:53,042 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 20:57:53,042 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 20:57:53,069 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 20:57:53,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 20:57:53,070 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:57:53,085 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 20:57:53,085 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 20:57:53,085 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:57:53,088 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 20:57:53,088 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 20:57:53,098 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 20:57:53,098 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 [2019-11-15 20:57:53,099 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:57:53,099 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 20:57:53,099 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 20:57:53,100 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 20:57:53,100 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:57:53,101 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 20:57:53,101 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 20:57:53,107 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 20:57:53,111 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 20:57:53,111 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 20:57:53,113 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 20:57:53,113 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 20:57:53,113 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 20:57:53,114 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-11-15 20:57:53,116 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 20:57:53,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:53,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 20:57:53,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:57:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:53,158 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 20:57:53,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:57:53,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:53,197 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 20:57:53,198 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2019-11-15 20:57:53,243 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2019-11-15 20:57:53,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-15 20:57:53,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 20:57:53,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2019-11-15 20:57:53,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2019-11-15 20:57:53,248 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:57:53,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-15 20:57:53,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:57:53,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2019-11-15 20:57:53,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:57:53,250 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2019-11-15 20:57:53,253 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 20:57:53,256 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-11-15 20:57:53,257 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-11-15 20:57:53,258 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-15 20:57:53,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-11-15 20:57:53,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 20:57:53,258 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-15 20:57:53,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-11-15 20:57:53,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2019-11-15 20:57:53,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-15 20:57:53,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2019-11-15 20:57:53,279 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-11-15 20:57:53,279 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-11-15 20:57:53,279 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 20:57:53,279 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2019-11-15 20:57:53,279 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 20:57:53,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:57:53,279 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:57:53,280 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 20:57:53,280 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 20:57:53,280 INFO L791 eck$LassoCheckResult]: Stem: 73#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 74#L11-2 assume !!(main_~x~0 > 0); 70#L12-2 [2019-11-15 20:57:53,280 INFO L793 eck$LassoCheckResult]: Loop: 70#L12-2 assume !!(main_~y~0 > 0);main_~y~0 := main_~y~0 - 1; 70#L12-2 [2019-11-15 20:57:53,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:53,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-15 20:57:53,281 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:53,281 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813374733] [2019-11-15 20:57:53,281 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:53,281 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:53,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:53,290 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:57:53,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:53,290 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-11-15 20:57:53,290 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:53,291 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708417150] [2019-11-15 20:57:53,291 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:53,291 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:53,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:53,297 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:57:53,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:53,297 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2019-11-15 20:57:53,297 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:53,298 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702318983] [2019-11-15 20:57:53,298 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:53,298 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:53,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:53,307 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:57:53,339 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 20:57:53,340 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 20:57:53,340 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 20:57:53,340 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 20:57:53,340 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 20:57:53,340 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:57:53,340 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 20:57:53,340 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 20:57:53,340 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.16.c_Iteration2_Loop [2019-11-15 20:57:53,340 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 20:57:53,340 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 20:57:53,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:57:53,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:57:53,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:57:53,415 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 20:57:53,415 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:57:53,419 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:57:53,420 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 20:57:53,423 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 20:57:53,423 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 /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:57:53,429 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:57:53,429 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 20:57:53,435 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 20:57:53,435 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 /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:57:53,441 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:57:53,441 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a38bba2-dffa-4e31-b145-b09167c91dc3/bin/uautomizer/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:57:53,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 20:57:53,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 20:57:53,459 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 20:57:53,460 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 20:57:53,461 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 20:57:53,461 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 20:57:53,461 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 20:57:53,461 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 20:57:53,461 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:57:53,461 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 20:57:53,461 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 20:57:53,461 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.16.c_Iteration2_Loop [2019-11-15 20:57:53,461 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 20:57:53,461 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 20:57:53,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:57:53,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:57:53,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:57:53,531 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 20:57:53,532 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 20:57:53,532 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 [2019-11-15 20:57:53,533 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:57:53,533 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 20:57:53,534 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 20:57:53,534 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:57:53,536 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 20:57:53,536 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 20:57:53,542 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 20:57:53,542 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 [2019-11-15 20:57:53,543 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:57:53,543 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 20:57:53,543 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 20:57:53,543 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 20:57:53,543 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:57:53,544 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 20:57:53,544 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 20:57:53,549 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 20:57:53,554 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 20:57:53,554 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 20:57:53,555 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 20:57:53,555 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 20:57:53,555 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 20:57:53,555 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-11-15 20:57:53,556 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 20:57:53,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:53,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 20:57:53,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:57:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:53,598 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 20:57:53,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:57:53,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:53,599 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 [2019-11-15 20:57:53,599 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2019-11-15 20:57:53,612 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 13 states and 18 transitions. Complement of second has 4 states. [2019-11-15 20:57:53,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 20:57:53,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-15 20:57:53,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2019-11-15 20:57:53,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. [2019-11-15 20:57:53,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:57:53,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-15 20:57:53,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:57:53,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-15 20:57:53,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:57:53,617 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2019-11-15 20:57:53,618 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 20:57:53,618 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2019-11-15 20:57:53,618 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 20:57:53,618 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 20:57:53,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 20:57:53,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 20:57:53,618 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:57:53,618 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:57:53,619 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:57:53,619 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 20:57:53,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 20:57:53,619 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 20:57:53,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 20:57:53,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 08:57:53 BoogieIcfgContainer [2019-11-15 20:57:53,627 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 20:57:53,628 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:57:53,628 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:57:53,628 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:57:53,629 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:57:52" (3/4) ... [2019-11-15 20:57:53,633 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 20:57:53,633 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:57:53,637 INFO L168 Benchmark]: Toolchain (without parser) took 1859.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -52.4 MB). Peak memory consumption was 104.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:57:53,638 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:57:53,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -197.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:57:53,639 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:57:53,640 INFO L168 Benchmark]: Boogie Preprocessor took 15.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:57:53,641 INFO L168 Benchmark]: RCFGBuilder took 184.18 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: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:57:53,642 INFO L168 Benchmark]: BuchiAutomizer took 1295.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 131.0 MB). Peak memory consumption was 131.0 MB. Max. memory is 11.5 GB. [2019-11-15 20:57:53,643 INFO L168 Benchmark]: Witness Printer took 5.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:57:53,650 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 324.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -197.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 184.18 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: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1295.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 131.0 MB). Peak memory consumption was 131.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 13 SDslu, 10 SDs, 0 SdLazy, 9 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax202 hnf98 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...